For correct keyboarding, what is the recommended placement

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For correct keyboarding, what is the recommended placement of fingers on the home row keys?

1. Fingers of the left hand on A-S-D-F and fingers on the right hand on J-K-L-;
2. Fingers of the right hand on A-S-D-F and fingers on the left hand on J-K-L-;
3. Fingers of the left hand on A-S-E-F and fingers on the right hand on J-K-O-P
4. Fingers of the left hand on Q-W-E-R and fingers on the right hand on U-I-O-P

Correct Option: A

NA