Which kind of muscle fibers enable the muscles to exert force for a long period of time? fast twitch slow twitch

The question says, which kind of muscle fiber enable the muscle to exert force for a long period of time. The correct option is 'slow switch'. The slow switch muscle enable one to participate in long endurance feats such as long distance running. These muscles are red in colour because of the high quantity of myoglobin found in them.