Read the following statement (A-D)
(A) Haemophilus influenzae infects the alveoli of lungs.
(B) Intestinal perforation and death may occur in severe cases of typhoid
(C) Rhino virus infect the nose and respiratory passage but not the lungs
(D) Symptoms of amoebiasis are abdominal pain and cramps stool with excess mucous and blood clots.
How many of the above statements are correct

Options

A. (l)One
B. (2)Two
C. (3) Three
D. (4) Four

Answer

To determine how many of the statements (A-D) are correct, we will analyze each statement one by one.

### Step-by-Step Solution:

1. **Statement A: Haemophilus influenzae infects the alveoli of lungs.**
- **Analysis:** Haemophilus influenzae is a bacterium known to cause respiratory infections, including pneumonia, which can indeed infect the alveoli (the air sacs in the lungs). Therefore, this statement is **correct**.

2. **Statement B: Intestinal perforation and death may occur in severe cases of typhoid.**
- **Analysis:** Typhoid fever is caused by the bacterium Salmonella typhi. In severe cases, it can lead to complications such as intestinal perforation, which can result in peritonitis and potentially death if untreated. Thus, this statement is also **correct**.

3. **Statement C: Rhinovirus infects the nose and respiratory passage but not the lungs.**
- **Analysis:** Rhinoviruses are primarily responsible for causing the common cold and typically infect the upper respiratory tract, including the nose and throat, but do not infect the lungs. Therefore, this statement is **correct**.

4. **Statement D: Symptoms of amoebiasis are abdominal pain and cramps stool with excess mucus and blood clots.**
- **Analysis:** Amoebiasis, caused by the parasite Entamoeba histolytica, does present symptoms such as abdominal pain, cramps, and diarrhea that may contain excess mucus and blood. Hence, this statement is also **correct**.

### Conclusion:
All four statements (A, B, C, and D) are correct. Therefore, the answer to the question is **4**.

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