Judging by the question I figured that for a product to be negative there is always an odd amount of negative integers.
Thus, the maximum amount of negative integers would be D 5
Wouldn't it be 2 since it goes into all them equally.
Answer= X>3
5x>15
Divide both sides by 5x

5x will cancel with 15. You get 3
So, x>3
4d+12
Lets put out the 4 because it can also be pulled out of 12
4(d+3)
Shoutout to @Mdarrow01
Have an amazing day!