Answer:
The correct option is a.
Step-by-step explanation:
The given expression is
[tex]15x^2+3xy+10x+2y[/tex]
It can be written as
[tex](15x^2+10x)+(3xy+2y)[/tex]
Taking out the common factors from each parenthesis.
[tex]5x(3x+2)+y(3x+2)[/tex]
Now, again taking out the common factors.
[tex](3x+2)(5x+y)[/tex]
Therefore the correct option is a.