Because it's supposed to be academic and I have had experience with this by saying similar and i got marked down for it
Treatment , frequency, treatment
A do you want to your room or would you prefer the wallpaper
Answer:
Context clues, tone, and word choice
Explanation:
Have* this is because has* is past tense and have is more appropriate since there are multiple things you are referring too (Mercury, Venus, Earth and Mars). To be honest, these planets have a molten core.