The earth rotates on its axis and revolves around the sun every

The Earth revolves around its axis, this rotating movement is called rotation, lasts 23 hours with 56 minutes and 4 seconds and is called sidereal day.

The Earth also revolves around the sun, this movement is called revolution or translation,  this movement of translation is done every 365 days and 6 hours approximately, a year.

a. i. only is correct.