Explanation:

In the sentence the main topic is fire so we have to look for the sentence which has the mention of ealry invention of fire and later the comparison of modern time fire ignition technique.So the correct suitable order for the sentences would be:

B. The first great discovery that man probably made was that of fire.

C. In olden times fires were made by rubbing two flints against each other till a spark was produced.

D. And this spark set fire to dry straw, leaves or wood.

A. Using matches however came much later.

Hence option 4 is the correct answer.