Choose the correct answer in scientific notation.
(7.24 × 10 to the 5th power) (2.5 × 10 to the 5th power)

A. 1.81 ×10 to the 13th power

B. 121 ×10 to the 11th power

C. 18.1 ×10 to the 12th power

D. 1.81 ×10 to the 35th power

E. None of the above