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Select the correct statement:

1. Relax when sitting into your chair, making sure you have your bottom against the set back your shoulder blades are touching the back rest of the chair.

2. Never sit at the computer for more than 40 minutes.

3. Arms should be flat and your elbows level with the desk or table you are using.

A)  1 and 2 are correct

B)  2 and 3 are correct

C)  Only 3 is correct

D)  All are correct

E)  None of these