Can I claim my daughter and girlfriend if she is receiving WIC?

My girlfriend and I live together with our 1 year old daughter.  I work full time and go to school part time.  My girl friend is going to school and has not received a salary from any job in 2016.   Although my girlfriend receives WIC benefits, I cover all expenses for rent, food, etc.  Am I able to claim both my girlfriend and our daughter and file under head of household?  I am not sure if receiving WIC benefits keep me from claiming one or both.