a reason jamestown settlers struggled to survive was that they\nwere not used to doing physical labor.\nwere…

Brief Explanations:

The Jamestown settlers were often of the gentry class or had skills not related to hard physical labor like farming. They were not accustomed to the arduous physical work needed to build shelters, clear land, and grow crops in the new environment. Looking for Roanoke colonists was not a main survival - related issue. Befriending the Powhatan initially helped (not hindered) in some ways (though relations soured later). If they were successful farmers in England, it would have been an advantage, but they were not.

Answer:

A. were not used to doing physical labor.