5. When three relational expressions are joined by OR I of the relational least D operators, there must be at there evaluate to true. a. one b. two c- three expressions that evaluate to true for the logical expression to d. none of the relational expressions evaluate to true Answer 6. Which of the following items is an acceptable first character in a Java identifier, such as a variable name? a. letter b. period c. semicolon Answer When a group of several relational expressions are joined with AND (&&) operators, relational expression(s) must be evaluated to true for the logical expression to be 7. evaluated to true. a. one b. two c. all d. none of the relational expressions evaluate to true Answer: 8. Thecommand allows exiting from a switch statement when a match has occurred. a. else b, if c. case d. break