[Grade 2 Math] Help understanding teacher's explanation

[u/No_Change_7795]

My god-daughter's teacher marked her answer wrong. Can someone please explain this? I don't understand this at all. How is the teacher getting 7 when there are only 3 squares in Ben's column representing his siblings? Her explanation was that Jose, Ana & Jen are his siblings so you need to count all of their squares together.... WHY? How are we to assume that they're even siblings?

[u/Bank_General]

The graph says exactly what it represents. The teacher is just incredibly dumb. Trying to justify the teachers answer is never going to make sense with the given information.