A Firm's Earnings Per Share Increased from $10 to $12,dividends

A firm's earnings per share increased from $10 to $12,dividends increased from $4.00 to $4.80,and the share price increased from $80 to $90.Given this information,it follows that ________.

A) the stock experienced a drop in the P/E ratio
B) the firm had a decrease in dividend payout ratio
C) the firm increased the number of shares outstanding
D) the required rate of return decreased
E) none of the above