melba receives most of her income from wages from job as a high school teacher.she also receives supplemental income from freelance tutoring part-time during the summer .Because her tutoring income is not subject to withholding ,Melba is concerned that she will have a balance due at the end of the year.Which of the following is an option you can recommend to Melba to avoid a balance due?

A)decrease her withholding allowances by submitting form W-4 to her employee.

B)Send a notatarized letter to her employer requesting that they withhold additional amounts from her pay each month.

C)investigate whether she qualifies to classify her tutoring income as a hobby rather than as business income.