Question

deficiency means :
relatively permanent disorder of the mind
a state of cooperation
the state of needing something that is absent or unavailable
an abnormally gloomy or unhealthy state of mind

Explanation:

"Deficiency" refers to a lack or shortage. The phrase "the state of needing something that is absent or unavailable" directly conveys this meaning. A "relatively permanent disorder of the mind" is more about a mental illness; "a state of cooperation" is about working together; "an abnormally gloomy or unhealthy state of mind" is about a mental mood.

Answer:

the state of needing something that is absent or unavailable