Select the option that is related to the third word in the same way as the second word is related to the first word. (The words must be considered as meaningful English words and must not be related to each other based on the number of letters/number of consonants/vowels in the word.)

Conchology : Shells :: Paleontology : ?

Conchology : Shells :: Paleontology : ?

Logic: The first word is a scientific field that specializes in studying the second.

​Conchology : Shells
→ Conchology is the scientific study of shells.​

Let's check each options:

Metals are studied in metallurgy.

Paleontology is the study of fossils. (Follow)

Planets are studied in astronomy

Soil is studied in pedology or geology.

Thus, the correct answer is option (b). ​​​​