Simplify the expression 3(2x-4) + 2(x+5) and choose the correct option.

$$3(2x-4) + 2(x+5) = (3 \times 2x) - (3 \times 4) + (2 \times x) + (2 \times 5)$$ $$= 6x - 12 + 2x + 10$$

$$= (6x + 2x) + (-12 + 10)$$ $$= 8x - 2$$

Comparing this result with the given options:
A. $7x-2$
B. $8x-2$
C. $8x+2$
D. $7x+2$

The correct option is B.

The final answer is $\boxed{\text{B. } 8x-2}$.