How does relative humidity and the dewpoint in an unsaturated air mass change with varying temperature?

Question

ATPL - Airline Transport Pilot license - Meteorology - How does relative humidity and the dewpoint in an unsaturated air mass change with varying temperature?

QuizVDS · Accepted Answer

When temperature increases, the relative humidity decreases, and the dewpoint remains constant.

QuizVDS · Answer

When temperature increases, the relative humidity increases, and the dewpoint decreases.

QuizVDS · Answer

When temperature decreases, the relative humidity and the dewpoint remain constant.

QuizVDS · Answer

When temperature decreases, the relative humidity decreases, and the dewpoint increases.

ATPL: How does relative humidity and the dewpoint in an unsaturated air mass change with varying temperature?

Domanda 141, Meteorology - ATPL - Airline Transport Pilot license