Final answer:
The correct answer is option C. 0.375. Linda spent 3/8 of her monthly budget on groceries, which is equivalent to 0.375 as a decimal.
Step-by-step explanation:
To find the decimal of Linda's monthly budget that was spent on groceries, we need to convert the fraction 3/8 into a decimal. To do this, divide the numerator (3) by the denominator (8): 3 ÷ 8 = 0.375. Linda spent 0.375 of her monthly budget on groceries when converting the fraction 3/8 into a decimal. Therefore, the decimal of Linda's monthly budget spent on groceries is 0.375.
Therefore, the correct answer is option C. 0.375.