In a constellation, ____ form a recognizable shape.
A) Stars
B) Planets
C) Meteoroid
D) Comets

Hint:As we can see, it is a theoretical question and in order to answer this question, one must be aware about these terms. Stars don’t form any recognizable shape. Constellation is a term related to a group of stars which form a certain shape. There are nearly 88 constellations recognized internationally.

Complete answer:
We know that constellations are a group of stars which appears to form a pattern or recognizable shape like Orion the Great Hunter, Leo the Lion and many more. The International Astronomical Union recognizes nearly 88 constellations including the entire northern and southern sky. Some of the major constellations in the zodiac family can all be seen along the ecliptic. They are as follows: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpius, Sagittarius, Capricornus, Aquarius and Pisces. Hydra is the largest constellation in the sky, its total area in square degrees, according to the official boundaries established by the International Astronomical Union (IAU). Hydra covers 1,303 square degrees, or 3 percent of the total celestial sphere.

Since constellation is the collection of stars, hence, option A is the correct option.

Note:Now, we know, the constellations are divided in the Northern Hemisphere as well as Southern Hemisphere and some of them in the northern sky are Ursa Major, Cassiopeia, Ursa Minor, Cygnus, Draco and many more. Some of the constellations in the southern sky are Crux, Centaurus, Puppis, Otans and many more. The earliest constellations were discovered by the Mesopotamians around five thousand years ago.