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Read the excerpt from "Standing Out in a Crowd."

Sterling did research to find out what would get girls interested in this type of toy. She learned that girls love stories and characters. This led her to invent a character named Goldie. Sterling wrote books about Goldie building things, and she invented toys to go with the stories. Sterling called the toys GoldieBlox. She tested them on more than a hundred kids, and the kids liked the toys. Therefore, she decided to try a crowdfunding campaign. She wanted to raise money to produce thousands of these toys.

What is the first effect in the chain of causes and effects in this passage?

Sterling invents a character named Goldie.
Sterling writes books about Goldie building things.
Sterling invents toys to go with the stories.
Sterling calls the toys GoldieBlox.