Choose the correct ending for the sentence.

le doy las flores
a mí
a ella
a ellos
a nosotros

It would be the -os form so it would say: Le doy las flores a ella.
So in English it would say I give them flowers. 
A.) a mi cause it would say: I give flowers to me. and that doesn't make sense.
B.) a ella is correct because it makes sense. I give her the flowers.
C.) a ellos is incorrect because it doesn't make sense. I give them flowers.D.) a nosotros is incorrect because it does not make sence I give flowers to us.

~Good Luck~

No, the correct way to answer that is -si, la quiero saber since it’s singular