Please let me know the reasoning for the correct answer. The part in double quotes is the one which needs to be corrected.
1)
Australian embryologists have found evidence "that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving" as a kind of snorkel.
a: that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving
b:that has suggested the elephant descended from an aquatic animal, its trunk originally evolving
c:suggesting that the elephant had descended from an aquatic animal with its trunk originally evolved
d:to suggest that the elephant had descended from an aquatic animal and its trunk originally evolved
e:to suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved.
ans:e
2)
Recently implemented shift -work equations based on the studies on human sleep cycle have reduced sickness, sleeping on the job, "fatigue among shift workers, and have raised" production efficiency in various industries.
a:fatigue among shift workers, and have raised
b:fatigue among shift workers, and raised
c:and fatigue among shift workers while raising
d:lowered fatigue among shift workers, and raised
e: and fatigue among shift workers was lowered while raising
ans:c
1)
Australian embryologists have found evidence "that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving" as a kind of snorkel.
a: that suggests that the elephant is descended from an aquatic animal, and its trunk originally evolving
b:that has suggested the elephant descended from an aquatic animal, its trunk originally evolving
c:suggesting that the elephant had descended from an aquatic animal with its trunk originally evolved
d:to suggest that the elephant had descended from an aquatic animal and its trunk originally evolved
e:to suggest that the elephant is descended from an aquatic animal and that its trunk originally evolved.
ans:e
2)
Recently implemented shift -work equations based on the studies on human sleep cycle have reduced sickness, sleeping on the job, "fatigue among shift workers, and have raised" production efficiency in various industries.
a:fatigue among shift workers, and have raised
b:fatigue among shift workers, and raised
c:and fatigue among shift workers while raising
d:lowered fatigue among shift workers, and raised
e: and fatigue among shift workers was lowered while raising
ans:c













