Step 1: Concept
The Fischer-Tropsch process converts a mixture of carbon monoxide and hydrogen (syngas) into liquid hydrocarbons.
Step 2: Catalyst Identification
Commonly used catalysts for this industrial process include iron (Fe), cobalt (Co), and ruthenium (Ru). A specific combination used in textbooks for gasoline synthesis is Cobalt-Thoria ($Co-ThO_2$).
Final Answer: (B)