To answer this question, we need to understand the functions and their purpose in character manipulation.
Option A) TRIM - This option is correct. The TRIM function is used to remove specified characters (usually spaces) from the beginning and end of a string.
Option B) REPLACE - This option is correct. The REPLACE function is used to replace a specified substring within a string with another substring.
Option C) TRUNC - This option is incorrect. The TRUNC function is used to truncate a number to a specified number of decimal places.
Option D) TO_DATE - This option is incorrect. The TO_DATE function is used to convert a string to a date value.
Option E) MOD - This option is incorrect. The MOD function is used to calculate the remainder of a division operation.
Option F) CASE - This option is incorrect. The CASE statement is used for conditional logic and does not manipulate characters directly.
The correct answers are A) TRIM and B) REPLACE. These functions are used for character manipulation by removing specified characters or replacing substrings within a string.