When writing a business letter, which of the following should be inclulded first?

for this case, we must find the number of deaths per day of the year 2015, in automobile accidents, knowing that 32,400 people died.

knowing that the year 2015 had 365 days we have the following division:

where "x" represents the number of deaths per day.

rounding off we have:

approximately, 89 people per day died in 2015

answer:

89 people per day

i don't know sorry i cannot read a novel in 30 min.

explanation:

but just in case i think the answer is b.

it is used to emphasize the word or sentence.