Question 38 on SOA questions

Hey guys, I'm taking FM Decemeber 10th and currently studying the SOA provided questions. Unfortunately for questions 38-40 their seem to be no solutions and I'm not very good with margin accounts, has any kind sole solved these problems or found the solutions to them? If you could help me out with them I would be very grateful, here is a link to the problems.
file:///C:/Users/Christopher/Downloads/FM-09-05ques.pdf


Question 38 on SOA questions