If bacteria that have undergone strain improvement are introduced into a natural environment:

A) they will usually outcompete and replace naturally occurring, wild-type strains.
B) they will usually be outcompeted by naturally occurring wild-type strains.
C) they will usually act as predators on naturally occurring wild-type strains.
D) they will usually serve as prey for naturally occurring wild-type strains.
E) they will usually act as commensals with naturally occurring, wild-type strains.