A mobile app developer wants to test the difference of usage time (hours) among Texas users, New York users, and California users. She collected the usage time from these three states.

When the developer codes the dummy variables, she chooses New York as the base category, and then creates two dummy variables: StateTX and StateCA. For StateTX, if a user is from Texas, the user receives value 1, and value 0 otherwise. For StateCA, if a user is from California, the user receives value 1, and value 0 otherwise. After the linear regression analysis, the developer finds that the coefficient of StateTX is 1.23, and the coefficient of StateCA is -0.15. Which statement is correct?

1. A) Users from New York use the mobile app the longest.
2. B) Users from Texas use the mobile app the longest.
3. C) Users from California use the mobile app the longest.
4. D) There is no difference in usage time among users from New York and California