What does the single equal sign operator $)=($ do$?$

Use the following statement as a reference for the options:

$i=j$

It sets the variable $"$i$"$ equal to the value currently represented by the variable $"$j$"$ It sets the variable $"$j$"$ equal to the value currently represented by the variable $"$i$"$ It checks to see if the values of $"i"$ and $"j"$ are equal to each other It produces an error because $"$i$"$ and $"j"$ are not the same character