| Assertion(A): | Colostrum provides naturally acquired passive immunity to the infant. | 
| Reason(R): | Colostrum is rich in lgA. | 
| 1. | Both (A) and (R) are true and (R) is the correct explanation of (A). | 
| 2. | Both (A) and (R) are true but (R) is not the correct explanation of (A). | 
| 3. | (A) is true but (R) is false. | 
| 4. | Both (A) and (R) are false. | 
| a. | Malaria | b. | AIDS | 
| c. | Chikungunya | d. | Hepatitis-B | 
| 1. | Chikungunya | - | Sharing tobacco smoke | 
| 2. | Amoebiasis | - | Contaminated food and water | 
| 3. | AIDS | - | Artificial insemination | 
| 4. | Malaria | - | Bite of an infected female Anopheles mosquito |