Mark the odd item in each series and select the correct option.
(i) Spermatocyte, polar body, spermatid, spermato-gonium
(ii) Endometrium, corpus luteum, acrosome, Graafian follicle
(iii) Vas deferens, Fallopian tube, epididumis, Cowper's gland
(iv) Testes, prostate, seminal veriscles, Cowper's gland

Options

A. `{:("(i)",(ii),(iii),(iv)),("spermatid","Endometrium","Epididymis","Prostate"):}
B. `{:("(i)",(ii),(iii),(iv)),("Polar body","Acrosome","Fallopian tube","Testes"):}
C. `{:("(i)",(ii),(iii),(iv)),("Spermatocyte","Corpus luteum","Vas deferens","Cowper's gland"):}
D. `{:("(i)",(ii),(iii),(iv)),("Spermatogo-nium","Graafian follicle","Cowper's gland","Seminal vesicles"):}`

Answer

To solve the question, we need to identify the odd item in each series based on their association with male or female reproductive systems or their roles in reproduction. Let’s break it down step by step.

### Step 1: Analyze the first series
**Items:** Spermatocyte, Polar Body, Spermatid, Spermatogonium

- **Spermatocyte, Spermatid, and Spermatogonium** are all involved in **spermatogenesis**, which is the process of sperm production in males.
- **Polar Body** is produced during **oogenesis**, which is the process of egg production in females.

**Odd Item:** Polar Body

### Step 2: Analyze the second series
**Items:** Endometrium, Corpus Luteum, Acrosome, Graafian Follicle

- **Endometrium, Corpus Luteum, and Graafian Follicle** are all structures associated with the **female reproductive system**.
- **Acrosome** is a part of the sperm and is involved in fertilization.

**Odd Item:** Acrosome

### Step 3: Analyze the third series
**Items:** Vas Deferens, Fallopian Tube, Epididymis, Cowper's Gland

- **Vas Deferens, Epididymis, and Cowper's Gland** are all parts of the **male reproductive system**.
- **Fallopian Tube** is part of the **female reproductive system** and is involved in transporting the egg.

**Odd Item:** Fallopian Tube

### Step 4: Analyze the fourth series
**Items:** Testes, Prostate, Seminal Vesicles, Cowper's Gland

- **Testes, Prostate, Seminal Vesicles, and Cowper's Gland** are all associated with the **male reproductive system**.
- However, **Testes** are the primary sex organs responsible for sperm production, while the others are accessory glands.

**Odd Item:** Testes

### Summary of Odd Items
1. (i) Polar Body
2. (ii) Acrosome
3. (iii) Fallopian Tube
4. (iv) Testes

### Final Answer
The odd items identified in each series are:
- (i) Polar Body
- (ii) Acrosome
- (iii) Fallopian Tube
- (iv) Testes

The correct option based on the analysis is **Option B**.