A logical structure called a(n) structure ls when one step follows another unconditionally o b. sequence c straight O d unconditional QUESTION 28 Statements in which an if structure is contained inside another it structure are commonly calledstatements o a blocked Ob. logical o c. inside d nested QUESTION 29 An alternative to using a Boolean expression, such as someVariabL10 is to store the Boolean expression's valve in a Boolean variable O True OFalse QUESTION 30 A(n) statement is the decision structure e you use when you need to take one or the other of two possible courses of action