Which conditions produce low pitches from a guitar string?
short strings, more tension, thick strings
long strings, less tension, thick strings
short strings, less tension, thin strings
long strings, more tension, thin strings

The option 2nd is correct. i.e. long strings, less tension, thick strings will produce low pitches from a guitar string.

A guitar has high pitch when its frequency is high. Short strings produce a higher pitch than long strings. Thin strings produce a higher pitch than thick strings. More tension in the string produces a higher pitch than less tension.