Which of the Following Credit Arrangements Would Most Likely Be

Which of the following credit arrangements would most likely be considered a purpose credit because it is indirectly secured by margin stock?

A) A loan made to purchase margin stock secured by nonmargin stock
B) A loan made to a company for various corporate purposes, including the purchase of margin stock, secured by the corporate assets, which from time to time include margin stock; on the date of the consummation of the transaction approximately 10 percent of the assets of the company are margin stock
C) A loan made to purchase margin stock, guaranteed by an individual who has pledged margin stock as security for the guarantee
D) Bank is the trustee for a qualified pension plan from which the participants may borrow and use their interest in the plan as security; a participant borrows money for the purpose of purchasing margin stock