In the given equations, the function ⇒ remains unchanged. What will come in place of the question mark (?) in the fourth equation?1) 5 ⇒ 3 = 192) 6 ⇒ 3 = 223) 6 ⇒ 5 = 344) 12 ⇒ 2 = ?

• A. 29
• B. 30
• C. 28
• D. 16