Respuesta :
the answer is A) 6:15, because if you divide both numbers by three, it'll give you 2:5
A.6:15
If you multiply 2:5 x 3 you get 6:15 other numbers won't be equal to 2:5
If you multiply 2:5 x 3 you get 6:15 other numbers won't be equal to 2:5