Write the Numbers in Scientific Notation and Perform the Operations $( 85,000,000,000 ) ( 4,700,000,000 )$

Multiple Choice

Write the numbers in scientific notation and perform the operations. Give the answer in scientific notation and in standard notation. $( 85,000,000,000 ) ( 4,700,000,000 )$

A) $3.995 \times 10 ^ { 19 } , \quad 39,950,000,000,000,000,000$
B) $0.3995 \times 10 ^ { 20 } , \quad 3,995,000,000,000,000,000$
C) $3.995 \times 10 ^ { 20 } , \quad 399,500,000,000,000,000,000$
D) $0.3995 \times 10 ^ { 19 } , \quad 3,995,000,000,000,000,000$
E) $3.995 \times 10 ^ { 18 } , \quad 3,995,000,000,000,000,000$