Which graph below uses the correct number A. B. C. D.

Hence correct option is b with 4 colors.

Step by-step explanation:

We are given a graph in which we need to color every vertex or node such that no adjacent vertex or node should have the same color, ex:- If color of node B is blue than it's adjacent vertex A and D must not have the same blue color. Now, Let's start coloring of graph :

Color vertex A as red : Now, it's adjacent vertex as B,C,D,E must not have red color we know this!.

Color vertex B as blue: Now, it's adjacent vertex A and D must not have blue color!

Color vertex C as blue:  Now, it's adjacent vertex A,E and D must not have blue color!

Color vertex D as green:  Now, it's adjacent vertex A,B,C and E must not have green color!

Color vertex E as purple:  Now, it's adjacent vertex C and D must not have purple color!

Hence correct option is b with 4 colors.

the answer is 96 degrees

step-by-step explanation:

you have to realize that a line equals 180 degrees

step-by-step explanation: