Given below is a list of few sexually tranmitted infections. Identify the deseases caused by bacteria among these
(i) Gonorrhoea
(ii) Giardiasis
(iii) Trichomoniasis
(iv) Chancroid
(v) Syphilis

Options

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

Explanation

To identify the diseases caused by bacteria from the given list of sexually transmitted infections, we will analyze each disease and its causative agent.

### Step-by-Step Solution:

1. **Identify the Causative Agents**:
- For each disease listed, we need to determine whether the causative agent is a bacterium, parasite, or another type of organism.

2. **Evaluate Each Disease**:
- **Gonorrhoea**: This disease is caused by the bacterium *Neisseria gonorrhoeae*. Therefore, it is a bacterial infection.
- **Giardiasis**: This disease is caused by the parasite *Giardia*. Therefore, it is not a bacterial infection.
- **Trichomoniasis**: This disease is caused by the parasite *Trichomonas vaginalis*. Therefore, it is not a bacterial infection.
- **Chancroid**: This disease is caused by the bacterium *Haemophilus ducreyi*. Therefore, it is a bacterial infection.
- **Syphilis**: This disease is caused by the bacterium *Treponema pallidum*. Therefore, it is a bacterial infection.

3. **List the Bacterial Diseases**:
- From the evaluation, we find that the diseases caused by bacteria are:
- Gonorrhoea
- Chancroid
- Syphilis

4. **Final Answer**:
- The diseases caused by bacteria among the given options are:
- (i) Gonorrhoea
- (iv) Chancroid
- (v) Syphilis