1) Which of the following numbers is divisible by 2 ? a) $\bigcirc 2,983$ b) $\bigcirc 245,325$ c) $\bigcirc 186,387$ d) $\bigcirc 427,224$

Step 1 ：Given numbers are 2,983, 245,325, 186,387, and 427,224.

Step 2 ：A number is divisible by 2 if its last digit is even (0, 2, 4, 6, 8).

Step 3 ：Check the last digit of each number.

Step 4 ：The last digit of 2,983 is 3, which is not even.

Step 5 ：The last digit of 245,325 is 5, which is not even.

Step 6 ：The last digit of 186,387 is 7, which is not even.

Step 7 ：The last digit of 427,224 is 4, which is even.

Step 8 ：Therefore, the number that is divisible by 2 is \(\boxed{427,224}\).