Question

¿Cómo son ____________________ hermanas?

Answer 1

?Como son ______________ hermanas? Translates to:
'As they are ____________ sisters?'
The best answer is choice b. mis, mis translates to 'my'.
The sentence then becomes:
?Como son mis hermanas?
Hope this helps!!:)

Answer 2

Not 100% on this, but I thinks it's A.