Answer:can you give the answer choices please .
Explanation:
Sentence A's use of a semicolon is meant to show a connection between two different ideas. Sentence B's use of the colon is used to precede a list or explanation.
Mammals (Mammalia) are a class of vertebrate homeothermic amniotes (of "warm blood") that possess milk-producing mammary glands with which they feed the young. Most are viviparous (with the notable exception of the monotrematas: platypus and echidnas). A clear example of a mammal is man and his best friend, the dog.
This should not be included in the notes, because it is scientifically approved that mammals have the capacity to produce milk and give this food to their young, which is vital for humans or dogs as in the example
It meant war with Britain and America wouldn't have the support of Britain like it did as a colony.
Answer: I believe it’s A.
Explanation: it explains difficulties that astronauts may face and in the following sentence it goes more in depth