The answer is C. Plural.
give thanx plz! .^_^.
Hospitals take strict precautions to assure that nothing adulterates the blood supply.
** adulterate : render something poorer in quality by adding another substance, typically an inferior one.
Answer:
1) which
2) whose
3) who
4) which
5) whose
6) who
7) which
8) who
9) whose
10) whose
11) where
12) where
I hope that hlped. Have a good one!!
