An O5 main-sequence star will be __________ compared to a M5 giant.
A. smaller and dimmer.
B. smaller and brighter.
C. larger and dimmer.
D. larger and brighter.
Answer:B
An O5 main-sequence star will be __________ compared to a M5 giant.
A. smaller and dimmer. B. smaller and brighter. C. larger and dimmer. D. larger and brighter.