Suppose a person met with an accident, and later, he turned into less concerned, irresponsible, and impulsive with the consequences of his actions. It happened because the person must have suffered damage in –

Frontal lobe

Explanation: The frontal lobe is a part of the brain. It controls the important cognitive skills of humans, such as memory, language, problem-solving, emotional expression, and others. The symptoms of damaging the frontal lobe are changes in behavior, reduced creativity, reduced sense of taste and smell, inability to problem-solve or organize tasks, depression, etc.