Which Response Has the Correct Number of Significant Figures and Units

Multiple Choice

Which response has the correct number of significant figures and units for the following mathematical operation? ? $9.23 \times 10 ^ { 5 } \mathrm { ergs } \times \frac { 1.000 \mathrm {~J} } { 1.000 \times 10 ^ { 7 } \mathrm { ergs } } \times \frac { 1.000 \mathrm { cal } } { 4.184 \mathrm {~J} } \times \frac { 1 \mathrm { kcal } } { 1000 \mathrm { cal } }$

A) 2.206 × 10^-5 J/cal
B) 2 × 10^-5 kcal
C) 2.206 × 10^-5 kcal
D) 2.21 × 10^-5 kcal
E) 2.2 × 10^-5 kcal