Step 1: Understanding capital market.
The capital market deals with long-term funds and investments. It includes institutions and mechanisms for raising capital.
Step 2: Analyzing the options.
(A) Securities market: Yes, it is part of the capital market (stocks, bonds, etc.).
(B) Industrial market: Yes, industries raise long-term funds through capital markets.
(C) Development financial institution: Yes, DFIs provide long-term financial support and are part of the capital market.
(D) All of these: Correct — all the above components belong to the capital market.
Step 3: Conclusion.
Thus, the correct answer is All of these.