chain multiplication

Question

what is the faster way to calculate in short time

Answer 1

Check by option if your result is less than any of 3 option and 4th option is even lesser than your result then mark 4th option.

If any how in between  you get your ans than its best case.

otherwise do all possibility until you get your result.

Answer 2

Answer is $226$ and the order of multiplication is $(A)(((BC)D)(E))$