**Core Concept**
Hepatitis A is a viral liver infection caused by the Hepatitis A virus (HAV). The incubation period of Hepatitis A refers to the time between exposure to the virus and the onset of symptoms.

**Why the Correct Answer is Right**
The incubation period of Hepatitis A typically ranges from 14 to 28 days, with an average of 20-25 days. This duration allows the virus to multiply within the liver cells and cause damage before symptoms become apparent. The exact duration of the incubation period may vary depending on factors such as the dose of the virus and the individual's immune status.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because it does not accurately represent the typical incubation period of Hepatitis A.

**Option B:** This option is incorrect because it is too short and does not account for the average duration of the incubation period.

**Option C:** This option is incorrect because it is too long and does not accurately represent the upper limit of the incubation period.

**Clinical Pearl / High-Yield Fact**
It is essential to note that the incubation period of Hepatitis A can be shorter in individuals who have a higher dose of the virus or are immunocompromised. This highlights the importance of early screening and diagnosis in patients with suspected Hepatitis A infection.

**Correct Answer:** 15 days.