4. The distance light travels in one year is approximately 5,870,000,000,000 miles. The distance light travels in 100 years is:

(a) 587 × 10^8 miles
(b) 587 × 10^10 miles
(c) 587 × 10^-10 miles
(d) 587 × 10^12 miles
(e) 587 × 10^-12 miles

Please answer with explanation :)