Which of the following crops were introduced into India from the New World?

Crop rotation is used by farmers to increase

Which of the following statements is true?

Apart from high yield,other main objectives of plant breeding are:

$A$: Encephalomalacia,a disease of poultry,is caused by the protozoan $Eimeria$.
$R$: Encephalomalacia causes bloody diarrhoea in poultry.

Assertion $A$: Breeding between animals of the same breed is a method of outcrossing.
Reason $R$: Offspring with completely different traits not present in the parents can be obtained.
Which option is correct for Assertion $A$ and Reason $R$?