Final answer:
Erythema migrans is the red target-like lesion associated with Lyme disease, which is caused by Borrelia burgdorferi and transmitted by ticks. It is the correct answer to the student's question about the early symptom of Lyme disease.
Step-by-step explanation:
The red target-like lesions that grow in size with some central clearing in the early stages of Lyme disease are known as erythema migrans. This is the correct answer to the question and represents a characteristic symptom of Lyme disease caused by the bacterium Borrelia burgdorferi. Upon a tick bite, the rash known as erythema migrans appears, and typically the center clears as it enlarges, often resembling a bull's-eye pattern.
This condition can be accompanied by flu-like symptoms and, if left untreated, can progress to more severe complications including arthritis, neurological disorders, and heart problems. A presumptive diagnosis of Lyme disease is often based on the presence of the distinctive rash and confirmation can be achieved with indirect immunofluorescent antibody labeling or serological tests like ELISA.