for invention of writing:
messages on your phone, your's text books, note books, diary, any written messages on any packages for information and guidance, doctor's prescription, teacher's comments and marking of your test papers , road signs and information along road sides for guidance, all are possible due to invention of writing.
For invention of wheels:
all vehicles are able to run due to invention of wheels
The first three options I see are all making-decision process to take action, but the last one is the one that is not like that. Researching is something that is not so close in meaning to what you need. That is why, D is a good option.
Political view of "a powerful chief executive".
The answer is A.Samuel Adams
<span>A popular sovereignty is the idea that the governing of the state is in the hands of the people of that state, who govern through their elected representatives. </span>
I believe the answer is: self fulfilling prophecy
Self fulfilling prophecy refers to the prediction that somehow makes itself become true/fulfilled. Other example would be when a person is inherently believe that he is somehow intellectually inferior and cannot do anything to improve their get. This often lead him to not making any efforts since he believes it pointless, which lead to self-fulfilling his initial opinion about himself.
