JEE Main 2021 Chemistry question

Consider two chemical reactions (A) and (B) that take place during metallurgical process : (A) (B) The correct option of names given to them respectively is :

• (A)(A) is calcination and (B) is roastingCorrect
• (B)Both (A) and (B) are producing same product so both are roasting
• (C)Both (A) and (B) are producing same product so both are calcination
• (D)(A) is roasting and (B) is calcination