What is the correct punctuation for the following sentence? She asked us if we wanted to place our lunch orders shes going to the restaurant at 11 am

A.   She asked us, if we wanted to place our lunch orders, she’s going to the restaurant at 11 a.m.

B.   She asked us if we wanted to place our lunch orders; she’s going to the restaurant at 11 a.m.

C.   She asked us if we wanted to place our lunch orders, she’s going to the restaurant at 11 a.m.

D.   She asked us if we wanted to place our lunch orders; shes going to the restaurant at 11 a.m.