Shares of Company A have price$-$earnings ratio of $10,$whereas shares of Company B have a price$-$earnings ratio of $15.$What is the most likely expanation for the differance between the price$-$eanings ratios for the two companies?

A$.$Investors expect Company B$\text{'}$s earning to be higher than Company A$\text{'}$s earnings in the future.

B$.$Investors expect Company B$\text{'}$s earnings to be lower than Company A$\text{'}$s earnings in the future.

C$.$Investors know that Company B$\text{'}$s earnings were higher than Compnay A$\text{'}$s earnings in the past.

D$.$Investors know that Company B$\text{'}$s earnings were lower than Compnay A$\text{'}$s earnings in the past.