There is actually 8 planets mercury, venus, earth, mars, saturn, jupiter, uranius, pluto are the planets that i know of.
Answer:
Cue
Explanation:
Cue -
It refers to any sign or indication , which signals the person to perform certain task , is referred to a cue .
The sign could be any person , sound , picture etc. , which possibility indicates the person to perform some similar task .
It acts as an indication for a task .
Hence , from the given scenario of the question ,
The correct answer is cue .
