I gave some flowers to your mother.

Question

I translated "I gave some flowers to your mother" as "Yo le di unas flores a tu madre". It was marked wrong and I can't work out why. I've looked at a couple of other websites and I still don't understand what I've got wrong. One site says that the "le" has to be used. The given answer didn't have "le" in it. Even if the "le" is optional, is it actually incorrect to use it, or have I got it all wrong? Thanks.

Accepted Answer

Hola Peter 
Yes, you're right. The use of "le" as a repetition of the indirect object is very common. If you tell us where you were marked wrong we can correct it. (there is nothing attached in your comment) 
We have a lesson on this topic in B2. You can have a look here. 
Saludos
Inma