Passive or active? The number of female managers IS GROWING/ IS BEING GROWN И объяснить

Question

Passive or active?
The number of female managers IS GROWING/ IS BEING GROWN
И объяснить

Answer 1

The number of female managers is growing .
Количество менеджеров женского пола растёт.
подлежащее не испытывает действия кого-либо на себе .