## **Core Concept**
The question pertains to the identification of a specific type of cell morphology associated with a particular condition or disease, likely in the context of pathology or cytology. "Tennis racket cells" is a descriptive term used for a specific cellular appearance.

## **Why the Correct Answer is Right**
The correct answer, **C. Rhabdomyosarcoma**, is associated with "tennis racket" or "strap-like" cells due to the presence of cross-striations and the elongated, strap-like appearance of some of the tumor cells. Rhabdomyosarcoma is a type of soft tissue sarcoma that originates from skeletal muscle cells. The presence of cells with a morphology resembling tennis racket cells (or strap-like cells) is characteristic and helps in the diagnosis.

## **Why Each Wrong Option is Incorrect**
- **Option A:** This option is incorrect because it does not correspond with the known association of "tennis racket cells" with any specific condition.
- **Option B:** Similarly, this option does not relate to the characteristic cellular morphology described as "tennis racket cells."
- **Option D:** This option is also incorrect as it does not match the condition associated with the described cellular appearance.

## **Clinical Pearl / High-Yield Fact**
A key point to remember is that rhabdomyosarcoma, a malignant tumor of skeletal muscle origin, can exhibit a variety of cellular morphologies, including spindle-shaped, strap-like, or "tennis racket" cells, especially in the embryonal subtype. This histological feature is crucial for diagnosis.

## **Correct Answer:** C. Rhabdomyosarcoma.