To solve this problem, we need to match the items from List-I with the correct descriptions from List-II.$\\$Let's analyze each item in List-I:$\\$A. Coke:$\\$• Coke is primarily used as a reducing agent in metallurgical processes.$\\$• Therefore, Coke corresponds to III. Use as a reducing agent.$\\$B. Diamond:$\\$• In diamond, each carbon atom is $sp^3$ hybridized, forming a tetrahedral structure.$\\$• Therefore, Diamond corresponds to I. Carbon atoms are $sp^3$ hybridised.$\\$C. Fullerene:$\\$• Fullerenes are molecules composed entirely of carbon, taking the form of a hollow sphere, ellipsoid, or tube.$\\$• They are known for their cage-like structures.$\\$• Therefore, Fullerene corresponds to IV. Cage like molecules.$\\$D. Graphite:$\\$• Graphite is used as a dry lubricant due to its layered structure, which allows layers to slide over each other easily.$\\$• Therefore, Graphite corresponds to II. Used as a dry lubricant.$\\$Now, let's match the items from List-I to List-II:$\\$A. Coke $\rightarrow$ III. Use as a reducing agent$\\$B. Diamond $\rightarrow$ I. Carbon atoms are $sp^3$ hybridised$\\$C. Fullerene $\rightarrow$ IV. Cage like molecules$\\$D. Graphite $\rightarrow$ II. Used as a dry lubricant$\\$Therefore, the correct option is:$\\$Option 3: A->III, B->I, C->IV, D->II$\\$This corresponds to the correct matches for each item in List-I with List-II.