**Core Concept**
Vitamin C is essential for collagen synthesis and wound healing. It acts as a co-factor for prolyl hydroxylase and lysyl hydroxylase enzymes, which are crucial for the stabilization and cross-linking of collagen fibers.

**Why the Correct Answer is Right**
Vitamin C deficiency leads to impaired collagen synthesis, resulting in poor wound healing. The lack of vitamin C impairs the hydroxylation of proline and lysine residues in collagen, making it less stable and prone to degradation. This impairs the wound's ability to form a strong, scar tissue that can withstand mechanical stress.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because vitamins A, B, and E have antioxidant properties, which can actually enhance wound healing by protecting against oxidative stress and inflammation.
**Option B:** This option is incorrect because vitamin D is essential for bone health and immune function, but it is not directly involved in wound healing.
**Option C:** This option is incorrect because vitamin K is necessary for blood clotting and bone health, but it does not have a direct inhibitory effect on wound healing.

**Clinical Pearl / High-Yield Fact**
Vitamin C deficiency can lead to impaired wound healing, and supplementation with vitamin C can enhance wound closure and strength. This is particularly important in patients with malnutrition, gastrointestinal disorders, or chronic diseases that impair vitamin C absorption.

**Correct Answer:** B. Vitamin B.