her employer: Net Salary in Cash of $49,500; Reimbursement of $5,500 worth of employment related travel costs upon submission of invoices; and Reimbursement of $1,400 in tuition fees for a work related course. The following amounts were withheld by the employer before paying the Net Salary in Cash: Income taxes of $6,254; Employment Insurance premiums of $896; Canada Pension Plan contributions of $2,998; Premiums on group medical insurance of $452; and Contributions to registered pension plan of $1,900. With respect to the registered pension plan, the employer also made a $1,900 contribution on behalf of Ms. McD. In addition, Ms. McD personally incurred the following during 2020: Dental expenses of $1,750 not covered by her medical insurance; Charitable donations of $475; Costs of moving to a larger apartment of $4,800; Life insurance premiums of $950; and Cost of travel to and from place of employment of $820. Required: Based on above, calculate Ms. McDs net federal taxes payable or refundable for 2020, commenting on her average and marginal tax rates. Be sure to explain why any amounts might be irrelevant. In addition, Ms. McD would like you to explain the differences in tax consequences to an employee between the stock options granted by a Canadian Controlled Private Corporation vs. a Public Company, preferably with an example.