**Core Concept**
The tensile strength of a wound is a measure of its ability to withstand stress and deformation without rupture. It is an important factor in wound healing, as it determines the strength of the scar tissue formed during the healing process.

**Why the Correct Answer is Right**
The tensile strength of a wound increases after the inflammatory phase, during the proliferative phase of wound healing. This is because the proliferative phase involves the deposition of new collagen fibers by fibroblasts, which gradually increases the tensile strength of the wound. The tensile strength of a wound is initially weak due to the presence of inflammatory cells and the lack of collagen fibers. However, as the proliferative phase progresses, the deposition of new collagen fibers increases the tensile strength of the wound, making it stronger and more resistant to stress.

**Why Each Wrong Option is Incorrect**
**Option A:** In the inflammatory phase, the tensile strength of the wound is actually decreased due to the presence of inflammatory cells and the lack of collagen fibers.
**Option B:** The lag phase is a period of minimal wound healing and does not involve significant increases in tensile strength.
**Option C:** The remodeling phase is a later stage of wound healing where the tensile strength of the wound is further increased, but this is not the initial stage where the tensile strength starts to increase.

**Clinical Pearl / High-Yield Fact**
It's essential to note that the tensile strength of a wound reaches approximately 50% of its original strength during the proliferative phase, and it is not until the remodeling phase that the tensile strength reaches its maximum value.

**Correct Answer: C. After the inflammatory phase, during the proliferative phase of wound healing.**