Answer: The two phrases that best describe the purpose of including character details in your story are:
4: To help the reader visualize the characters.
2: To make the story more interesting.
Explanation: Character details such as "Susan's' beautiful red hair bellowed in the wind" or "Balthazar awoke to find he was somewhere underground. he ruffled his fluffy. brown hair and tried to figure out what had happened. All he knew right now, were that his six-pack abs extremely sore"
Help the reader to visualize the characters. Balthazar has fluffy brown hair and six-pack abs (lol) and Susan has long red hair.
It also makes the story more interesting. I'm not gonna explain that one, because my fingers are cold, and it's getting hard to type.
I hope this helps! Happy holidays!