Answer:
D. 12h + 6k
Explanation:
in order to find the equivalent expression, you have to simplify it (at least in this case)
when simplifying the expression, you use the distributive property (multiplying 3 to both 4h AND 2k). 3(4h) = 12h, and 3(2k) = 6k, so it is 12h + 6k