Answer:
I'm thinking that "riding to their deaths" could mean two different things.
1. A simile, Riding to their deaths can mean riding for a long time.
2. Literally, Riding to their deaths can also mean that they are going to get into trouble from something ahead.
Explanation:
The answer is C. Free-only planners
The best way to describe the sentence " In 1984, Byron Lichtenberg, who is a biomedical engineer became a member of a spacecraft crew." is complex. The correct answer is C, complex.
It's either B or D, but I'm leaning towards to B.
It is A. True for the question