What is the relationship between the string and the pitch?

The thickness, tension, and length of a string determine the pitch of the sound it generates. Guitars typically feature six strings of varying thickness. The thickness of a string is related to its pitch. If two strings are the same length, the thicker string will have a lower pitch than the thinner string.

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Ibelieve the answer is the second one. plz don't kill me if i got it wrong. > .<