A city bus accelerates away from a bus stop at the acceleration shown. At the next stop, a tourist boards the bus with 1,000-kg of recording equipment, and when the bus driver starts going again, he notices he has to press harder on the gas pedal to maintain the same acceleration. Based on this information, which facts illustrates that the force needed to accelerate the bus is directly proportional to its mass? Select ALL that apply. A. The force of the engine decreased after the tourist boarded the bus. a.The force of the engine decreased after the tourist boarded the bus. b.The acceleration of the bus increased after the tourist boarded the bus. c.The acceleration of the bus decreased after the tourist boarded the bus. d.The acceleration of the bus is in thesame direction of the force of the engine. e.The force of the engine increased when the bus driver pressed harder on the gas pedal.