All Humans Are Mammals, and All Mammals Are Animals

Multiple Choice

All humans are mammals, and all mammals are animals. All animals are living organisms. Some organisms reproduce asexually, but not mammals. Some mammals live underwater, but not humans.
If the sentence "At least some animals reproduce asexually and live underwater" is added to the passage, each of the following must be true EXCEPT:

A) At least one underwater animal is a mammal.
B) At least one underwater animal reproduces asexually.
C) Some living organisms are mammals, but not all.
D) Some living organisms do not live underwater.
E) Most asexually reproducing animals do not live underwater.