A new hair-growth drug is being sold for three times the price, per milligram, as the drug's maker charges for another product with the same active ingredient.
A) as
B) than
C) that
D) of what
E) at which
OA C
Please explain why to reject all the answers and select this one
A) as
B) than
C) that
D) of what
E) at which
OA C
Please explain why to reject all the answers and select this one












