The practice of ________ involves a firm injuring competition by charging different prices to different members of its distribution channel

During 2016, Robert Moore, who is 50 years old and unmarried, maintained his home in which he and his widowed father, age 75, resided. His father had $3,100 interest income from a savings account and also received $3,100 from Social Security during 2016. Robert provided 60% of his father's total support for 2016. What is Robert's filing status for 2016, and how many exemptions should he claim on his tax return?

a. Head of household and two exemptions. b. Single and two exemptions. c. Single and one exemption. d. Head of household and one exemption.

Appendices may also be called _____________

a. extras b. extended information c. attachments d. enders