If ‘A’ means ‘+’, ‘B’ means ‘–’, ‘C’ means ‘×’ and ‘D’ means ‘÷’, then which of the following equation is true?

• 12 D 6 A 4 C 3 = 12
• 48 D 3 C 2 = 31
• 14 C 2 D 7 A 3 = 6
• 24 C 3 B 14 = 58