The correct option is (B): 100
Explanation: To find the remainder when 784 is divided by 342:
Calculate the product of the divisor and the quotient**:
\[342 \times 2 = 684\]
Subtract this product from the original number:
\[784 - 684 = 100\]
Check if 100 is less than 342:
Since 100 is less than 342, it is the remainder.
Thus, the remainder when 784 is divided by 342 is 100.