B. The structures in space from smallest to largest are star, solar system, galaxy, universe.
What do you mean by space?
"Space is the zone above and around our planet where there is no air to breathe or to scatter light. Space is a vacuum."
What is a star?
"A star is a luminous ball of gas, mostly hydrogen and helium, held together by its own gravity."
What is a solar system?
"The solar system is the gravitationally bound system of the Sun and the objects that orbit it."
What is a galaxy?
"A galaxy is a huge collection of gas, dust, and billions of stars and their solar systems."
What is the universe?
"The universe is all of space and time and their contents, including planets, stars, galaxies, solar systems and all other forms of matter and energy. "
To know more about space here https://brainly.com/question/21725400
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