Which detail supports the main idea that microgravity weakens astronauts' bones?
A) astronauts grow 1-3 inches taller
B) Astronauts' legs become thins and sticklike
C) astronauts lose 10 percent of their bone tissue after several months without gravity
D) astronauts get used to living without gravity after about one week
I think it's either B or C. Am I right?
1. d
2. a
3. c
4. c
5. b