If a database table of users contains the following rows, and id is the primary key, which statement would return only an object whose last_name is "Cordero"?
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| id | first_name | last_name |
|----|------------|-----------|
| 1 | Alice | Anderson |
| 2 | Bob | Buckner |
| 3 | Carrie | Cordero |
| 4 | Devon | Dupre |
| 5 | Carrie | Eastman |
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a. User.where(first_name: "Carrie")
b. User.not.where(id: [1, 2, 4, 5])
c. User.find_by(first_name: "Cordero")
d. User.find(3)