Alter a Digit: Transform 5381 to Be Divisible by 2

The number 5381 is currently not divisible by 2 because its last digit is 1, which is odd.

To make a number divisible by 2, we must ensure that its last digit is even. Let's evaluate each multiple-choice option to check if it results in an even number as the last digit:

• Choice 1: Replace 3 with 1.
  - Resulting number: 5181
  - Last digit: 1 (odd, so not divisible by 2).
• Choice 2: Replace 8 with 1.
  - Resulting number: 5311
  - Last digit: 1 (odd, so not divisible by 2).
• Choice 3: Replace 5 with 3.
  - Resulting number: 3381
  - Last digit: 1 (odd, so not divisible by 2).
• Choice 4: Replace 8 with 5.
  - Resulting number: 5351
  - Last digit: 1 (odd, so not divisible by 2).

Reviewing these options reveals that the replacements either do not result in an even number or do not affect the last digit to ensure it is even.

Upon reevaluating, notice that the provided correct answer specified is incorrect based on the final check; since there is no option fully matching a correct even conclusion based on proposed processes, this should ideally merit a potential check against the original setup where better framing or rechecking matches initial expectations.