Which Premise in Singer's Argument Does Timmerman Object To

Multiple Choice

Which premise in Singer's argument does Timmerman object to?

A) Suffering and death from lack of food, shelter, and medical care are bad.
B) If it is in your power to prevent something bad from happening, without sacrificing anything nearly as important, it is wrong not to do so.
C) By donating to aid agencies, you can prevent suffering and death from lack of food, shelter and medical care, without sacrificing anything nearly as important.
D) Both a and b