What do we know for sure about homer? select all that apply.

a. he was from ionia.
b. the scholars at alexandria treated him as a single poet who wrote the iliad and the odyssey.
c. "he" was really a woman named nausicaa.
d. he was blind.
e. we know that someone—individually or collectively—wrote the odyssey.
f. a good deal of controversy surrounds the poet's identity.