To answer this question, we need to understand the purpose of the ARITH(EXTEND) compiler option and how it affects the maximum number of digits.
The ARITH(EXTEND) compiler option is used to enable extended arithmetic in programs. When this option is specified, the compiler allows calculations with larger numbers and a greater number of digits.
Now, let's go through each option to understand which one is correct:
Option A) (1) 40 - This option is incorrect because it specifies that the maximum number of digits is 40, which is not correct according to the given information.
Option B) (2) 45 - This option is incorrect because it specifies that the maximum number of digits is 45, which is not correct according to the given information.
Option C) (3) 31 - This option is correct because it specifies that the maximum number of digits is 31, which aligns with the given correct answer.
Option D) (4) 18 - This option is incorrect because it specifies that the maximum number of digits is 18, which is not correct according to the given information.
Therefore, the correct answer is Option C) (3) 31. This option is correct because it correctly specifies the maximum number of digits allowed when the ARITH(EXTEND) compiler option is used.