Threatening events that have a relatively long duration and no apparent time limit are referred to as

A) ambient stressors.
B) cultural stressors.
C) acute stressors.
D) chronic stressors.

Chronic stressors are events or situations that last for a long period of time with no apparent end in sight, leading to ongoing stress and anxiety. Examples may include financial difficulties or caregiving for a sick family member. The other options, such as ambient stressors and acute stressors, typically have a shorter duration or clear endpoint.