Was not a successor to william the conqueror.
a. simon de montfort
c. henry i
b. king john
d. henry ii
select the best answer from the choices provided

The answer is D. Henry II

Henry II of England is the Successor of Geoffrey of Anjou. during his Era, Henry II of England managed to conquer Ireland, Wales, Scottland, and Brittany.

Henry's empire quickly fall during the reign of His incompetent youngest Son, John.

The person who wasn't a successor to William the Conqueror would be Henry II - D.

Namely, when we're talking about William the Conqueror and his successors, we're talking about the English kingdom and kings or monarchs who were English kings later one. From the list you've provided - Henry II wasn't one. 

The constant presence of diseases or infectious agents within a given geographic area or population group. it may also refer to the usual prevalence of a given disease with such area or group. it includes holoendemic and hyperendemic diseases. a holoendemic disease is one for which a high prevalent level of infection begins early in life and affects most of the child population, leading to a state of equilibrium such that the adult population shows evidence of the disease much less commonly than do children (malaria in many communities is a holoendemic disease). a hyperendemic disease is one that is constantly present at a high incidence and/or prevalence rate and affects all groups equally. so probably family history.