You can join tables by using a condition in the "where" clause.
B is the correct answer to ur questions
I believe it is b “Broadly speaking, modularity is the degree to which a system's components may be separated and recombined, often with the benefit of flexibility and variety in use. ... However, the concept of modularity can be extended to multiple disciplines, each with their own nuances.”
“Hexadecimal uses digits that more closely resemble our usual base-10 counting system and it's therefore easier to decide at a glance how big a number like e7 is as opposed to 11100111. Higher information density. With 2 hexadecimal digits, we can express any number from 0 to 255.”
function is the right answer because function is a block of code designed to perform a particular task