In Arumville, among those young children with elevated levels lead in their
blood, few leave in houses containing lead-based paint, but many leave in
areas where vehicular traffic is heavy. These children's elevated blood-lead
levels probably result from lead added to gas, since, although gasoline sold in and around Arumville has been lead-free since 1990, lead from vehicule exhaust
remains in the soil for many years.
Which of the following, if true, most strengthens the argument?
A: Sale of lead-based paint for use in homes was banned in Arumville in 1977
B: Vehicle traffic in most residential areas of Arumville is heavier today than it was twenty years ago
C: Some lead in the soil comes from deteriorating lead-based paint on the exterior of buildings
D: In Arumville, children's blood-lead levels typically rise during the warm summer months when children frequently play outdoors but not in the winter when children spend more time indoors.
E: If improperly carried out, the removal of lead-based paint from older houses can significantly the risk that children living in such houses will ingest lead dust.
Conclusion: Lead remains in the soil leads to elevated lead levels among children(although lead is banned after 1990)
Couple of the assumptions are:
-Currently running vehicles don't release lead into the air.
-These children don't spend lot of their time in places, such as schools, that have lead paint.
Coming to choice B, can this be a good weakener ?
I think it attacks the first assumption I noted.
If not B, what could be a strong weakener ?
blood, few leave in houses containing lead-based paint, but many leave in
areas where vehicular traffic is heavy. These children's elevated blood-lead
levels probably result from lead added to gas, since, although gasoline sold in and around Arumville has been lead-free since 1990, lead from vehicule exhaust
remains in the soil for many years.
Which of the following, if true, most strengthens the argument?
A: Sale of lead-based paint for use in homes was banned in Arumville in 1977
B: Vehicle traffic in most residential areas of Arumville is heavier today than it was twenty years ago
C: Some lead in the soil comes from deteriorating lead-based paint on the exterior of buildings
D: In Arumville, children's blood-lead levels typically rise during the warm summer months when children frequently play outdoors but not in the winter when children spend more time indoors.
E: If improperly carried out, the removal of lead-based paint from older houses can significantly the risk that children living in such houses will ingest lead dust.
Conclusion: Lead remains in the soil leads to elevated lead levels among children(although lead is banned after 1990)
Couple of the assumptions are:
-Currently running vehicles don't release lead into the air.
-These children don't spend lot of their time in places, such as schools, that have lead paint.
Coming to choice B, can this be a good weakener ?
I think it attacks the first assumption I noted.
If not B, what could be a strong weakener ?
