1099-B Custodian Acct - submit her own return?

Hello,

My daughter (3 years old) received a 1099-B tax form for an ETF sale ($1300 gain) and 1099-DIV ($1350 dividend).

Is there anyway to include her on my tax form? Or must I submit her own tax return due to the investment sale?

Any suggestions on free online tax return services I can use for her? 

Thanks,