Under Massachusetts law, which of the following places is it illegal to carry a firearm, even with a License to Carry?

While carrying a firearm with a License to Carry is generally permissible in most public places in Massachusetts, it is illegal to carry a firearm on school grounds, including schools and school properties. This is to ensure the safety of students and faculty and to prevent potential accidents or violence in school settings. Therefore, options A, B, and C may be incorrect as they do not specify the prohibited location of school grounds. Additionally, it is important to note that there may be specific regulations or restrictions on carrying firearms in other areas, such as federal buildings or private properties.