Please give me steps

0.12 Let S=$100,K=$95,r=8% (continuously compounded), =30%,=0, T=1 year, and n=3. a. Verify that the binomial option price for an American call option is $18.283. Verify that there is never early exercise; hence, a European call would have the same price. b. Show that the binomial option price for a European put option is $5.979. Verify that put-call parity is satisfied. c. Verify that the price of an American put is $6.678