To answer this question, let's go through each option to understand why it is correct or incorrect:
Option A) 50 - This option is incorrect because the value of 'a' will not be multiplied by 'c' since the condition in the if statement is not satisfied.
Option B) NULL - This option is incorrect because the value of 'a' is initially 5 and it will not be set to NULL in the given code.
Option C) 5 - This option is correct because the condition in the if statement is satisfied (a > b and a < c), so the value of 'a' will be updated to the product of 'c' and 'a', which is 10 * 5 = 50. Therefore, the value of 'a' will be 5 after execution.
Option D) None of the above - This option is incorrect because the correct answer is option C, as explained above.
The correct answer is C. The value of 'a' will be 5 after execution.