Please show your working and explain the reasoning for your answer.

BigBang Fireworks has total assets of $4,744,288, total debt of $2,912,000, and net profit after tax of $212,465. What is BigBang's ROE? Select one: O a. 11.60% O b. 7.30% O c. 4.48% O d. 61.38% Dead Hair Underwear Manufacturing is required by its bank to maintain a current ratio of at least 1.75, and its current ratio now is 2.1. The company plans to acquire additional inventory to meet an unexpected surge in the demand for its products and will pay for the inventory with short-term debt. How much inventory can the DHUM purchase without violating its debt agreement if their total current assets equal $3.5 million? Select one: O a. $1 million O b. $0 O C. None of the above O d. $777,777