This question is followed by four possible answers. The alternatives other than the correct answer also seem to have a relationship with the item mentioned in the statement. You are required to select the absolute truth which always holds or verifies the truth of the statement: "A clock always has_______________"

Needles

A clock always has Needles (known as Hands). Because witout needles we can't know the time.

While some clocks may have additional features like batteries for power, alarms to set specific times for alerts, or numbers to indicate the hours, the presence of needles (hands) is a fundamental characteristic that defines a clock.