Based on what we know about our own solar system, the discovery of hot jupiters came as a surprise to scientists because these planets are view available hint(s) based on what we know about our own solar system, the discovery of hot jupiters came as a surprise to scientists because these planets are so close to their stars so small made of different materials than either the terrestrial or jovian planets in our solar system so large

so close to their stars

Explanation:

Hot Jupiter are exoplanet. Exoplanets are terrestrial bodies that are beyond our solar systems. These are giant gas planets outside the solar system which is thought to be similar to the planet 'Jupiter' of our solar system.

Hot Jupiters have a very short orbital period.

These exoplanets have a very high temperature surface atmospheres like the Jupiter of our solar system and their closeness to their stars nicknamed them as "Hot Jupiters" by the astronomers.

Thus the answer is ---

so close to their stars

figure it out loser harabe

pretty sure a is right