**Core Concept**
The question is testing the contraindications of corticosteroids in the context of tuberculosis (TB) treatment. Corticosteroids are immunosuppressive agents that can exacerbate TB by suppressing the body's immune response to Mycobacterium tuberculosis. The correct answer requires identification of the specific type of TB where corticosteroids are absolutely contraindicated.

**Why the Correct Answer is Right**
Corticosteroids are contraindicated in miliary TB, a form of TB characterized by widespread dissemination of M. tuberculosis throughout the body, including the lungs, liver, spleen, and other organs. This is because corticosteroids can further suppress the immune response, leading to uncontrolled proliferation of the bacteria and worsening of the disease. In miliary TB, the use of corticosteroids can lead to rapid progression of the disease and increased mortality.

**Why Each Wrong Option is Incorrect**
* **Option A:** Lymph node TB is not a specific type of TB where corticosteroids are absolutely contraindicated. Corticosteroids may be used in certain cases of lymph node TB to reduce inflammation and swelling.
* **Option B:** Pulmonary TB is not a contraindication for corticosteroids. Corticosteroids may be used in conjunction with antitubercular therapy to reduce inflammation and improve lung function.
* **Option C:** TB meningitis is a serious form of TB that requires aggressive treatment, including corticosteroids to reduce inflammation and prevent cerebral edema. Corticosteroids are not contraindicated in TB meningitis.

**Clinical Pearl / High-Yield Fact**
It is essential to remember that corticosteroids should be used with caution in all forms of TB, and their use should be carefully weighed against the potential risks of immunosuppression. Miliary TB is a specific type of TB where corticosteroids are absolutely contraindicated due to the risk of uncontrolled bacterial proliferation and worsening of the disease.

**Correct Answer:** C.