what is the price of a European put option on a non$-$dividend$-$paying stock when the stock price is $$68,$ the strike price is$$70,$ the risk$-$free interest rate is $8\%$ per annum, the volatil$-$ ity is $30\%$ per annum, and the time to maturity is six months?

What d$1?$

What is d$2?$

What is N$($d$2)?$

What is N$($d$1)?$

What is the put option price?