NEET Biology question

Assertion (A): Azotobacter and Azospirillum can fix atmospheric nitrogen without forming a symbiotic relationship with plant roots. Reason (R): These bacteria are free-living in the soil and possess the nitrogenase enzyme required for nitrogen fixation.

• (A)Both A and R are true and R is the correct explanation of ACorrect
• (B)Both A and R are true but R is NOT the correct explanation of A
• (C)A is true but R is false
• (D)A is false but R is true