| Assertion (A): | Interstitial spaces outside the seminiferous tubule have blood vessels and sertoli cells. | 
| Reason (R): | Sertoli cells provide nutrition to the germ cells. | 
| 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. | (A) is false, but (R) are true. |