The correct option is C 12
The expression
3×(4×6)÷12+3×2 can be solved using the rules of BODMAS
By the rule first we solve the brackets
3×(4×6)÷12+3×2=3×24÷12+3×2
Then we solve the division
3×24÷12+3×2=3×2+3×2
Then we solve the multiplication
3×2+3×2=6+6
Then we solve addition
6+6=12