Please answer the following question: Answer the following question given this paragraph: There are four known types of bosons, which are force-carrying particles. Each of these bosons carries a different fundamental force between interacting particles. In addition, there is a particle which may exist, called the "Higgs Boson", which gives objects the masses they have. Some types of bosons have mass; others are massless. Bosons have an electric charge of +1, -1, or 0. Q: How many types of bosons are there? Choices: - three - one - five - four A:
Answer:
four