The following table shows today’s prices of security A and B and future payoffs of security A, B, and C for each state at maturity time. Compute the price today of security C. If C is priced at $68, what kind of arbitrage takes place? If C is priced at $60, what kind of arbitrage takes place?

Asset

Price Today

Future Payoff State 1

Future Payoff State 2

A

$70

$50

$100

B

$60

$30

$120

C

$39

$111