Select the sentence that could be used as a thesis statement. 1. The invention of the elevator safety Beak is underappreciated for its influence on commercial businesses, archetectural design, and the lives of average citizens
2. American inventor Elisha Graves tis developed the elevator safety break in 1852 and conducted the product demonstrations for the public at the 1854 World's Fair in New York City
3. Businesses should be able to have the decision on whether or not they install an elevator safety break because it is expensive to buy and maintain
4. All of the sentences above are thesis statements