To solve the problem, we need to determine the day the cardiologist (E) visits the hospital based on the given clues. Let's break it down step by step.
### Step-by-Step Solution:
1. **Identify the professions and days:**
- We have five individuals: E, F, G, H, and K.
- They are a physician, surgeon, dentist, cardiologist, and nephrologist.
- They visit the hospital on weekdays: Monday, Tuesday, Wednesday, Thursday, and Friday.
2. **Analyze the clues:**
- **Clue 1:** The physician visits the hospital every Monday.
- **Clue 2:** E is the cardiologist who comes neither on Tuesday nor Thursday.
- **Clue 3:** K is a surgeon and G is not the physician.
- **Clue 4:** The person who visits the office on Thursday is not a nephrologist.
- **Clue 5:** H works on a Tuesday and K works on the following day (Wednesday).
3. **Assign days based on clues:**
- From **Clue 1**, we know the physician is in the hospital on Monday.
- From **Clue 5**, H works on Tuesday, so K must work on Wednesday.
- This means:
- H = Tuesday
- K = Wednesday
- Since K is a surgeon (from **Clue 3**), we have:
- K = Surgeon, Wednesday
4. **Determine E's schedule:**
- From **Clue 2**, E is the cardiologist and does not come on Tuesday or Thursday. Since H is on Tuesday and K is on Wednesday, E must be on Friday.
- Thus, we have:
- E = Cardiologist, Friday
5. **Determine the remaining professions and days:**
- The physician must be on Monday (from **Clue 1**). Since G is not the physician (from **Clue 3**), the physician must be F.
- This leaves G and the nephrologist. Since the person who visits on Thursday is not a nephrologist (from **Clue 4**), G must be the nephrologist and must visit on Thursday.
- Therefore, the remaining profession (dentist) must be assigned to G.
6. **Final assignments:**
- Monday: F (Physician)
- Tuesday: H (Dentist)
- Wednesday: K (Surgeon)
- Thursday: G (Nephrologist)
- Friday: E (Cardiologist)
### Conclusion:
The cardiologist (E) visits the office on **Friday**.
### Answer:
D. Friday
