Which from following is used as catalyst in Fisher Tropsch process for the synthesis of gasoline?

Fischer-Tropsch catalysts convert carbon monoxide and hydrogen into liquid hydrocarbons like gasoline. Among the options, Co-Th (cobalt-thorium) is the established catalyst system for gasoline synthesis, while others serve different functions:

$\mathrm{Fe}-\mathrm{Cr}$ for water-gas shift, Mo for other reactions, and Ni primarily for methanation.