At a wedding, the bride and groom want to avoid discomfort among the guests. To do this, we decided to divide the hall into two sides, so that people who are fighting don't risk being on the same side.

Consider the graph below, where:

• each vertex represents a guest;
• there is an edge between two guests if they are fighting.

Which of the alternatives below presents a group of guests who can sit on the same side of the hall without fighting between them?

A) Carla, Diego, Gabriela e João

B) Ana, Diego, Isabela  e Felipe

C) Bruno, Elisa, Henrique e João

D) Carla,  Ana, Diego e Bruno

E) None above