In 2016 and 2017 and
were the deadliest months?
O July / November
O March / January
o May / June
o October/ July

In 2016 and 2017  and were the deadliest months  March / January

When Of all persons killed in vehicles where restraint

Its usage was applicable and usage was known in  2016, 43.85% were reported as not restrained  when the fatal crash occurred are:  

 In 2016  265,730 persons were injured in motor vehicle

traffic crashes.

Then There were 500 motorcyclists (operators and  passengers) were killed in 2016.  percent of  (53%) of motorcyclists killed were not wearing  helmets at the time of the crash. Also,  Pedestrian fatalities totaled 680 in 2016. This is very  a 21% increase from 2015. Then, Pedalcyclist fatalities totaled 66 in 2016.  This is a 25% increase from 2015. Then In 2016, there were 1,020 people killed in motor  vehicle traffic were crashes where a driver was under  the influence of alcohol. This is 27% of the total  number of people were killed in motor vehicle traffic  crashes.

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The answer is july/ october