Cross-checking between pilots is essential because:

It is only required by regulation

It provides a second verification layer to catch errors and prevent deviations

Correct

It reduces the captain's workload entirely

It is only needed during instrument approaches

Explanation

Cross-checking is a key element of multi-crew operations, ensuring errors are detected and corrected before they lead to unsafe conditions.

Test yourself with random questions from Operational Procedures and all other ATPL subjects.