a preserver means someone who preserves things ex. " I preserved my old antiques for later use "
Answer:
a series of recent post by astronauts.
Explanation:
this would be the most reliable source because it is first hand information, instead of people who havent visited space or traveled space.
I think that the answer is B b/c the first and last answer make no sense and it says that he walked in a buzz of excitement which made me think of choice b
Collective nouns are always singular
Ex. A flock of birds is migrating to the South.
