FERMAT 2023 Problem 5

Ava’s machine takes four-digit positive integers as input. When the four-digit integer A B C D is input, the machine outputs the integer A \times B+C \times D. For example, when the input is 1234 , the output is 1 \times 2+3 \times 4=2+12=14. When the input is 2023 , the output is

Answer Choices
A. 0
B. 2
C. 3
D. 6
E. 8