Sierra is a single $30$ percent owner of Cisco $($a business entity$).$ In the current year, Cisco reported a $$1,000,000$ business loss. Answer the following questions associated with each of the following alternative scenarios:

a$.$ Cisco is organized as a C corporation and Sierra works $20$ hours a week as an employee for Cisco. Sierra has a $$200,000$ basis in her Cisco stock. How much of Cisco$$s loss is Sierra allowed to deduct this year against her other income?

b$.$ Cisco is organized as an LLC taxed as a partnership. Thirty percent of Cisco$$s loss is allocated to Sierra. Sierra works $20$ hours a week on Cisco business activities $($she is not considered to be a passive investor in Cisco$).$ Sierra has a $$400,000$ basis and at$-$risk amount in her ownership interest in Cisco. Sierra does not report income or loss from any other business activity investments. How much of the $$300,000$ loss allocated to her from Cisco is Sierra allowed to deduct this year?

c$.$ Cisco is organized as an LLC taxed as a partnership. Thirty percent of Cisco$$s loss is allocated to Sierra. Sierra is not involved in Cisco business activities. Consequently, she is considered to be a passive investor in Cisco. Sierra has a $$400,000$ basis and at$-$risk amount in her ownership interest in Cisco. Sierra does not report income or loss from any other business activity investments. How much of the $$300,000$ loss allocated to her from Cisco is Sierra allowed to deduct this year?