Question

........... are fundamental data building block of a database.​

Answer 1

Entities are fundamental data building block of a database.​

Answer 2

$\huge\underline\bold\red{AnsweR...}$

☞Entity, attribute and relationships are the fundamental data building block of a database...

Explanation:

ₕₒₚₑ ᵢₜ ₘₐy ₕₑₗₚₛ ᵤ...