Select the option that is true regarding the following two statements labelled Assertion and Reason. Assertion (A): Salmonellae can get onto the shell of eggs when birds lay eggs and the eggs touch bird droppings. Reason (R): Salmonellae can get inside eggs while the egg is being formed and before the egg makes a shell.
Options:

Correct option is B

Assertion is true: Salmonella is commonly found in the intestinal tracts of poultry. During egg laying, eggs can become contaminated externally if they come in contact with feces or soiled nesting material. This is a recognized pathway of shell contamination.
Reason is also true: Certain strains of Salmonella, especially Salmonella enteritidis, can infect the hen’s reproductive tract, entering the egg before the shell is formed, leading to internal contamination of egg contents (yolk or albumen).
However, the Reason does not directly explain the shell contamination described in the Assertion. Instead, it explains internal contamination, which is a different route.
Therefore, both statements are true, but the Reason is not the correct explanation of the Assertion.
Hence, the correct answer is Option (b).