To find the "odd one out" in each set, we look for the option that is different in a specific way compared to the others. Here's the analysis:

1. **1. A school** - Others are nouns related to people (e.g., child, thought).
- Odd one out: **A. school**

2. **2. A birth** - Others are related to thought/creation (e.g., thought, honest).
- Odd one out: **A. birth**

3. **3. A scheme** - Others relate to machines/tools (e.g., machine, mechanic).
- Odd one out: **A. scheme**

4. **4. A bear** - Others are verbs (e.g., throw, through).
- Odd one out: **A. bear**

5. **5. A throw** - Others are all related to verbs/actions.
- Odd one out: **D. healthy**

6. **6. A chemistry** - Others are related to ailments or tools (e.g., headache, machine).
- Odd one out: **A. chemistry**

7. **7. A go** - Others are more specific adjectives or nouns (e.g., large, game).
- Odd one out: **A. go**

8. **8. A rather** - Others are pronouns or specific choices (e.g., them, neither).
- Odd one out: **A. rather**

9. **9. A sugar** - Others are related to sight (e.g., sight, source).
- Odd one out: **A. sugar**

10. **10. A weather** - Others relate to natural occurrences or events (e.g., earthquake).
- Odd one out: **A. weather**

11. **11. A soil** - Others are geographic (e.g., island, secret).
- Odd one out: **A. soil**

12. **12. A teacher** - Others are actions or relationships.
- Odd one out: **A. teacher**

13. **13. A what** - Others are interrogatives (e.g., who, whose).
- Odd one out: **A. what**

14. **14. A pitch** - Others are actions (e.g., watch, come).
- Odd one out: **A. pitch**

15. **15. A capital** - Others are verbs or have action connotation (e.g., come).
- Odd one out: **A. capital**

16. **16. A helps** - Others are actions related to objects (e.g., finds, cooks).
- Odd one out: **A. helps**

Count the odd ones noted as per the selections you have, and these might help to see which ones followed through!

If you have specific alternatives you want to focus on, let me know!