A man with enlarged breasts sparse body hair and XXY chromosome complement is suffering from

Options

A. (a) Down's syndrome
B. (b) Turner's syndrome
C. (c) Klinefelter's syndrome
D. (d) Super females

Answer

### Step-by-Step Solution:

1. **Identify the Symptoms**: The individual in the question exhibits enlarged breasts, sparse body hair, and has an XXY chromosome complement. These symptoms are indicative of a specific condition.

2. **Understand the Chromosomal Abnormality**: The presence of an XXY chromosome complement suggests a chromosomal abnormality. Normally, males have an XY chromosome complement, and the presence of an additional X chromosome (making it XXY) is significant.

3. **Relate Symptoms to a Condition**: The symptoms of enlarged breasts (gynecomastia), sparse body hair, and hormonal imbalances point towards Klinefelter syndrome. This condition is characterized by the presence of one or more extra X chromosomes in males.

4. **Hormonal Impact**: In Klinefelter syndrome, the extra X chromosome leads to lower levels of testosterone, which is responsible for male characteristics. The reduced testosterone levels contribute to the development of feminine traits, such as breast enlargement and reduced body hair.

5. **Confirm the Diagnosis**: Given the symptoms and the chromosomal analysis (XXY), it is clear that the individual is suffering from Klinefelter syndrome.

6. **Eliminate Other Options**: Other syndromes mentioned (like Down syndrome and Turner syndrome) do not match the symptoms or the chromosomal makeup of XXY. Down syndrome is associated with trisomy of chromosome 21, while Turner syndrome involves a missing X chromosome (XO) in females.

7. **Final Answer**: Therefore, the correct answer to the question is Klinefelter syndrome.