—If a=4, b=5, what’s the answer to the question “ a + 2ab +1 =?”

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A. Forty-fifth　　　　　　　　　　　　　 B. Forty-five

C. Twenty-three　　　　　　　　　　　D. One hundred and twenty-one

—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”

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—If a="4," b="5," what’s the answer to the question “ a + 2ab +1 =?”
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