Ahmet organizes the achievement comprehension test files prepared for his mathematics class by topic and files them on his computer. According to Ahmet's filing method, inside the main folder named Mathematics there are 5 folders, inside each folder there are $n$ subfolders, inside each subfolder there are $p$ test files, and each test contains 12 questions. Ahmet deleted one of the subfolders inside the Probability folder along with its contents because he solved all the tests in that subfolder. How many questions are in the Mathematics main folder in the final state? A) $48 \cdot n \cdot p$ B) $n \cdot (60 \cdot p - 1)$ C) $60 \cdot p \cdot (n - 1)$ D) $12 \cdot p \cdot (5 \cdot n - 1)$ E) $12 \cdot p \cdot (5 \cdot n - 1)$
Ahmet organizes the achievement comprehension test files prepared for his mathematics class by topic and files them on his computer. According to Ahmet's filing method, inside the main folder named Mathematics there are 5 folders, inside each folder there are $n$ subfolders, inside each subfolder there are $p$ test files, and each test contains 12 questions.
Ahmet deleted one of the subfolders inside the Probability folder along with its contents because he solved all the tests in that subfolder.
How many questions are in the Mathematics main folder in the final state?
A) $48 \cdot n \cdot p$
B) $n \cdot (60 \cdot p - 1)$
C) $60 \cdot p \cdot (n - 1)$
D) $12 \cdot p \cdot (5 \cdot n - 1)$
E) $12 \cdot p \cdot (5 \cdot n - 1)$