An American option is more valuable than a European option on the same dividend paying stock with the same terms because the:()

A. European option contract is not adjusted for stock splits and stock dividends and does not conform to the Black-Scholes model and is often mispriced. 

B. American option can be exercised from date of purchase until expiration, but the European option can be exercised only at expiration. 

C. American options are traded on U. S. exchanges, which offer much more volume and liquidity.