<h2>Right answer:</h2><h3>b. un cuaderno.</h3><h3 />
Sara would need a notebook (cuaderno) to write down all the information she receives from her teacher. The other options are a rule (una regla) and a calculator (una calculadora). These two objects are useful for math class not for history class. So the complete sentence is as follows:
<em>Para la clase de historia tengo un cuaderno</em><em> (For the history class I have a notebook)</em>
