How many of the given matches are correct ?
`{:("(i) Sugarcane","Prop roots"),("(ii) Turnip","Modified tap root"),("(iii) Banyan","Stilt roots"),("(iv) Rhizophora","Pneumatophore"),("(v)Sweet potato","Fasciculated tap root"):}`

Options

A. (i),(ii),(iii) & (iv)
B. (i),(iii) & (iv)
C. (ii),(iv) ,(v)
D. (ii),(iii)

Answer

To determine how many of the given matches between plants and their root modifications are correct, we will analyze each match one by one.

1. **Match (i): Sugarcane - Prop roots**
- Sugarcane actually has **stilt roots**, which are a type of prop root that provide support. Therefore, this match is **incorrect**.

2. **Match (ii): Turnip - Modified tap root**
- Turnips have a **modified tap root** that is primarily used for storage of food. This match is **correct**.

3. **Match (iii): Banyan - Stilt roots**
- The banyan tree has **prop roots** that grow down from its branches to provide support. Therefore, this match is **incorrect**.

4. **Match (iv): Rhizophora - Pneumatophore**
- Rhizophora, which grows in swampy areas, has roots that grow upwards called **pneumatophores**, which help in respiration. This match is **correct**.

5. **Match (v): Sweet potato - Fasciculated tap root**
- Sweet potatoes have **fasciculated tap roots**, which are modified for storage of food. This match is **correct**.

Now, let's summarize the correctness of each match:
- Match (i): Incorrect
- Match (ii): Correct
- Match (iii): Incorrect
- Match (iv): Correct
- Match (v): Correct

**Total Correct Matches: 3 (Matches ii, iv, and v)**

### Final Answer:
The number of correct matches is **3**.