The S&P index spot price is 1100, the risk-free rate is 5%, and the continuous dividend yield on the index is 2%:

A) Suppose you observe a 6-month forward price of 1120. What arbitrage would you undertake?

B) Suppose you observe a 6-month forward price of 1110. What arbitrage would you undertake?
I would be happy to post the answer. When and if I find out. Thanks for your hard work!