What is break fragment?

• A. an fragment which has one or more guarded operands whose guards are mutually exclusive—that is, at most one of them can be true at any time
• B. a fragment which has a single operand that is performed instead of the remainder of the enclosing fragment or diagram if the operand guard is true
• C. a fragment which has a single operand that may or may not have a guard
• D. none of the mentioned