Concept:Bulls, bears, and stags are well-known types of speculators who trade based on expected price movements in the stock market.Explanation:Bulls are speculators who buy shares expecting prices to rise in the future.Bears are speculators who sell shares expecting prices to fall so they can buy back at a lower price.Stags are speculators who apply for new share issues hoping to sell them quickly at a premium.Thus, all these dealers belong to the same category of market participants.Answer:C. speculators