Connective tissue fibers include:
Correct Answer: C
Rationale: The correct answer is C: Reticular, elastic, and collagen fibers. Reticular fibers provide structural support, elastic fibers allow flexibility, and collagen fibers offer strength to connective tissues. Purkinje fibers are specialized cardiac muscle fibers, not connective tissue fibers. Choice A is incorrect because it includes Purkinje fibers, which are not part of connective tissue. Choice B is incorrect as it includes Purkinje fibers instead of reticular fibers. Choice D is incorrect because it lacks elastic fibers, which are essential for tissue flexibility. Therefore, choice C is the correct answer as it includes all three types of essential connective tissue fibers.