Antonym of EVOLVING

retreating
stifling
stagnating
suffering

The correct answer is B. stifling.

To evolve means to develop gradually, especially from a simple to a more complex form. The opposite of evolving is to stagnate, which means to remain unchanged or to become less active or productive.

Retreating means to move back or withdraw, while suffering means to undergo pain or distress. Neither of these words are opposites of evolving.