The everyday observation referred to in the passage refers to
Aa moving bus or train
Bthe sudden start of a bus
Cthe tendency of a standing person to fall when a bus or train moves suddenly
Dpeople standing in a bus or train
Aa moving bus or train
Bthe sudden start of a bus
Cthe tendency of a standing person to fall when a bus or train moves suddenly
Dpeople standing in a bus or train
Related Questions: