⟩ Which of the following charactor can be added to the identifire mylengthyvariable, to make it more redable?
A. Minus sign, "-" (e.g. my-lengthy-variable )
B. An underscore, "_" (e.g. my_lengthy_variable)
C. A period, "." (e.g. my.lengthy.variable)
D. A plus sign, (e.g. my+lengthy+variable)