WBCS.LIVE practice question

$(999⁤\frac{1}{7}+999⁤\frac{2}{7}+999⁤\frac{3}{7}+999⁤\frac{4}{7}+999⁤\frac{5}{7}+999⁤\frac{6}{7})=?$

Solve this multiple-choice question and check the correct answer with its explanation below.