Which sentences use a time-related term correctly?
select all correct answers.
a. william of normandy crossed the english channel and defeated king harold ii in a. d. 1066.
b. romulus augustulus, the last roman emperor, was taken prisoner by the german king odovacar in c. e. 476.
c. julius caesar was assassinated in b. c. 44.
d. alexander the great died in 323 b. c.e.