Consider a discrete-time financialmarket consisting of a riskyasset and a risk-free asset.The prices of therisky and risk-

free assets at timet (where t= 0, 1, 2, . . . ) aredenoted by S(t ) and A(t ) dollars, respectively. Let the prices A(0) = 100,

A(1) = 105, S(0) = 100 and

S(1) = 110, with probability p, OR 90, with probability 1 − p,

where 0 <p < 1. Suppose that a European call option and a European put option are associated with therisky

asset. Applyingthe No-Arbitrage Principle,

(a)   compute theprice c(0) of a call option withstrike price $100and exercise time1

(b)   compute the price p(0) of a put optionwith strike price$100 and exercisetime 1

本人初涉统计学，有些搞不太明白，麻烦各位大侠指导一二。万分感谢！