The correct option is C 27 days
Moon
completes one revolution around the Earth in about 27 days. This time period is
known as sidereal month. Moon cycles through all its phases in 29.5 days. The
time taken to go through all the cycles is known as synodic month. The average
speed of moon is of 2,288 miles per hour, but it moves at different speeds at
different times during its orbit. It moves faster when it’s closer to earth,
but it moves slower when it’s farther away. The Moon travels about 1,423,000
miles around the Earth in one orbit.