Hiccups are caused by not having enough air. Scaring some one causes them to take a deep breath getting more air and stopping the hiccups. Not 100% sure that's right though.
Less people will have to inhale the second smoke from others due to smoking in public. Many people could have less health problems due to lack of second hand smoke inhalation
The answer is d, if psychological needs are not met
Gathering information and data, since it refers to the key word: <em>timeline</em>.
