Mentally Simplify the Quotient Without a Calculator $\left( 1.5 \times 10 ^ { 25 } \right) \div \left( 5 \times 10 ^ { 5 } \right)$

Multiple Choice

Mentally simplify the quotient without a calculator. $\left( 1.5 \times 10 ^ { 25 } \right) \div \left( 5 \times 10 ^ { 5 } \right)$

A) $3 \times 10 ^ { 21 }$
B) $3 \times 10 ^ { 20 }$
C) $3 \times 10 ^ { 19 }$
D) $- 4.5 \times 10 ^ { 20 }$
E) $4.5 \times 10 ^ { 20 }$