<span> </span>The
correct answer is shaping. Shaping is a method by which it is employed to be
able to have successive approximations towards a particular or targeted behavior
that are being reinforced by means of testing the theory of the behavioral
psychology.
Answer:
by diseases of mosquitos and sickness like chicken pocks
Explanation:
bevause of mosquitos a lot of people died of malaria and for chicken pocks they didn't have a medicine for it and many people died for this.