Answer:
A complex sentence is made up of at least two independent clauses and 1 or more dependent clauses.
I can't really see number two...
IT MIGHT NOT CAUSE A SEQUENCE.YOU NEVER KNOW
The verb is walked because it's an action, quickly describes the action that is an adverb so the correct answer is walked
A pretty woman (Mathilde Loisel) is kinda poor but she thinks she deserves to be rich and hang with rich people because she's pretty. one day her husband (Monsieur Loisel) gets her invited to a big fancy party with rich people, they use all of their money to buy her a rally nice dress and she borrows an amazing pearl and diamond necklace from her friend (Madame Forestier).
she goes to the party and has and great time, but when she gets back, she realizes it's missing. She and her husband look everywhere but can't find it so they get a huge loan to buy another just like it and give it to the friend.
Then they spend the rest of their lives paying off the debt of the loan or whatever.
After a long time, the lady sees her friend and tells her the story. To horrifies her friend because it wasn't even a real pearl/ diamond necklace.