Answer:
Computers
Explanation:
If your question referrs to technological advances then the Computer takes the cake as one technological device that impacted us.
Answer:schedule, topic, sources, methods
Explanation:
The answer is C. At first the child misjudges the elderly neighbor when he fears her, and is happy with their new friendship when she helps him.
A has misjudgment but no happiness.
B doesn't match at all
D doesn't say that the rivals misjudged their rivalry or were happy at any point.