Word problems ! Please help

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Valentina is subtracting from . she finds the lcd to be 15y2. what is valentina's next step?

This is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 4 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 3 terms. this is a rational expression because the denominator contains a variable. this is a polynomial with 5 terms.