The correct option is A 64
As the numbers are quite large here, let's use area model diagram.
For that, we'll have to split 16 first.
16=10+6
Now, we have to multiply 10 and 6 with 4.
10×4=40
6×4=24
Next, we have to add the above numbers to get the final answer.
40+24=64
Therefore, the correct answer is 16×4=64.