**Core Concept**
Wound healing is a complex process involving multiple stages, including inflammation, proliferation, and remodeling. Tensile strength, which is the maximum force a wound can withstand before rupturing, is an essential parameter for assessing wound healing.

**Why the Correct Answer is Right**
The tensile strength of a wound returns to normal after the remodeling phase, which typically lasts for 2-3 months in adults. During this phase, the newly formed collagen fibers are reorganized and cross-linked, increasing their strength and durability. This process is mediated by various enzymes, including lysyl oxidase, which catalyzes the cross-linking of collagen fibers. The increased tensile strength of the wound is crucial for its ability to withstand mechanical stress and prevent re-rupture.

**Why Each Wrong Option is Incorrect**
**Option A:** This option is incorrect because the tensile strength of a wound does not return to normal after the inflammatory phase, which is the initial stage of wound healing and is characterized by the activation of immune cells and the release of various pro-inflammatory cytokines.
**Option B:** This option is incorrect because the tensile strength of a wound does not return to normal after the proliferation phase, which is the second stage of wound healing and is characterized by the formation of granulation tissue and the deposition of new collagen fibers.
**Option C:** This option is incorrect because the tensile strength of a wound does not return to normal after 1-2 weeks, which is the time frame for the initial stages of wound healing, but not sufficient for the remodeling phase to occur.

**Clinical Pearl / High-Yield Fact**
It's essential to note that the tensile strength of a wound can be influenced by various factors, including age, nutrition, and the presence of underlying medical conditions. A wound with a low tensile strength is at a higher risk of re-rupture and may require additional treatment or support.

**Correct Answer: C. 3 months**