Question

In what way was captain John Smith instrumental in the survival of the Jamestown colony? a)he insisted that all colonists work on producing food if they were to eat; b)he planned the goods the colonists should take so they'd survive after landing; he secured trade with the Indians so that they had enough food to survive harsh winters

Answer 1

The Jamestown bunch could have disappeared as easily as Roanoke before it. Everybody was there to get rich finding gold. A look at a list of the occupations of the first batch shows lots of "Gentlemen" and their personal servants and very few workers with skills to keep a group alive.
Smith came on the scene a little later and imposed some discipline and order to the group so they could produce enough food to stay alive.