Given below are two statements :
Statement I : Noradrenaline is a neurotransmitter.
Statement II : Low level of noradrenaline is not the cause of depression in human.
In the light of the above statements, choose the correct answer from the options given below

We analyze each statement:

Statement I: Noradrenaline is a neurotransmitter.

This is CORRECT. Noradrenaline (norepinephrine) is an important neurotransmitter in the sympathetic nervous system and the brain.

Statement II: Low level of noradrenaline is not the cause of depression in humans.

This is INCORRECT. Low levels of noradrenaline are indeed associated with depression. Noradrenaline deficiency is one of the known causes of depression, and many antidepressant drugs work by increasing noradrenaline levels.

Statement I is correct but Statement II is incorrect.

The correct answer is Option B: Statement 1 is correct but statement 2 is incorrect.