Consider the following statements and choose the correct one ones 1 Standing parliamentary committee...........

Explanation:

Both 1 and 2

Standing parliamentary committees are appointed every year or periodically: This statement is correct. Standing parliamentary committees are appointed either annually or periodically as per the rules and procedures of the Parliament.

Ad-hoc committees cease to exist after the assigned task is completed: This statement is correct. Ad-hoc committees are appointed for a specific purpose, and they cease to exist once they have completed the assigned task and submitted a report.

Therefore, the correct option is 3: Both 1 and 2.