Select the proper ergonomic keyboarding techniques. -Push firmly on the keys and hold them down for long periods.
-Your arms should be comfortable at your side, forming a 45° angle with your upper arms, and your forearms should be parallel to the floor.
-Position the keyboard directly in front and close to you so you don't have an excessive reach.
-If you are working for a long period of time, alternate between sitting and standing.
- -Take breaks to stretch.
-Keep your shoulders, arms, hands and fingers relaxed.
-Position your wrists straight or in neutral position while typing.
-Adjust your chair height and position so your feet rest flat on the floor, or add a footrest to compensate for a higher chair.
-Adjust the keyboard height so that your shoulders can relax and your arms are straight in front of you.
-Do not rest your hand on the mouse when resting. Rest your hands in your lap when not working.

The correct options are;

-Position the keyboard directly in front and close to you so you don't have an excessive reach

-Keep your shoulders, arms, hands and fingers relaxed

-Position your wrists straight or in neutral position while typing

-Adjust your chair height and position so your feet rest flat on the floor, or add a footrest to compensate for a higher chair

-Adjust the keyboard height so that your shoulders can relax and your arms are straight in front of you

Explanation:

1) It is important to keep the fingers in a relaxed position when typing

2) Ensure to type in a tapping fashion when typing rather than pressing on the keys of the keyboard

3) The fingernails should be kept short when frequent typing is done

4) The wrist is better kept above the keyboard than resting on it

5) Ensure that the mouse is easily reached.

answer; certification; plz check first, i believe this is correct. good luck;

answerpanning and scanning;