we know that
distributive property of multiplication over addition:
![a * (b+c)=a * b + a * c](https://img.qammunity.org/2019/formulas/mathematics/high-school/n8lnm1f9y17bsz97jq4cvy7iva7nuiepe4.png)
now, we will verify each options
option-A:
3 × (4 + 5) = (3 × 4) + (3 × 5)
We can see that both sides match with property
so, this is TRUE
option-B:
3 × (4 + 5) = (3 + 4) × (3 + 5)
We can see that right side does not match with property
so, this is FALSE
option-C:
3 × (4 + 5) = (3 × 4) + 5
We can see that right side does not match with property
so, this is FALSE