For each of the following, indicate if there is a threat to independence. If so, state the threat and a possible safeguard. a) Harry McMaster, CPA is unaware that his audit client, Ketchum Inc. makes up 22% of the firms revenues. b) cost. c) Tanya Yilp goes to her assurance client, Extreme Marketers Inc to create advertising for the firm. Due to their business relationship, Extreme Marketers offers Tanya marketing services below Cam Clinton has been auditing Muddy Waiters Inc. (MWI) for many years. MWI has been experiencing financial difficulties and has not been able to pay its audit fees for the last three years. MWI now owes Cam $125,000 in assurance fees. d) Rea Leonard has three audit engagements. One of the audit engagements is done for Bread Winner Ltd., which is 70% owned by Rea's mother-in-law, Wilma Fort. The remaining 30% of the company is owned by Wilma's oldest son. 7 A BI Threat Type A C D Safeguard