<span>Ella gastó 1,66 dólares americanos</span>
Mis amigas leen mucho. A ellas les gusta la serie de Harry Potter.
Ellas because they're female, Ellos would mean they're male. Hope this helps :)
Hay una flor en este jarrón
B) estamos leyendo
You have a book in your hands meaning you are reading
It's D., I just took the quiz on APEX.