Answer: B & C & D if you look at it, it going to be the same answer.
1. B is 5+7=12 2x12=24 and 10+14=24
2. C is 8x7=56 and 5+2=7 that is 7x8=5
3. D is 8x7=56 and 6+1=7 8x7=56
So all three of that is true because it the same answer. Hope you understand
Step-by-step explanation: Hope this help :D