Direction:- In the following question a statement of assertion is followed by a statement of reason . Mark the correct choice as:-
A) If both assertion and reason are true and reason is a correct explanation of assertion.
B) If both assertion and reason are true but reason is not the correct explanation of assertion.
C) If assertion is true but reason is false.
D) If assertion is false but reason is true.
Assertion :- A single outcross often helps to overcome Inbreeding Depression.

  Reason :- Out crossing is the best breeding method for increasing milk productivity.

B

Both the statements are absolutely correct , holding their own significance but the reason doesn't explains the assertion.

Out-crossing: This is the practice of mating of animals within the same breed, but having no common ancestors on either side of their pedigree up to 4-6 generations. The offspring of such a mating is known as an out-cross. It is the best breeding method for animals that are below average in productivity in milk production, growth rate in beef cattle, etc.