In Pinus,
| I. | The stem is branched |
| II. | Roots have fungal association in the form of mycorrhiza |
| III. | The male and female strobili are borne on different trees |
| 1. | Only I is correct |
| 2. | Only II is correct |
| 3. | Only I and II are correct |
| 4. | I, II and III are correct |