Answer:
Well when dogs join something like the police force they are trained to sniff out bombs, drugs, people and etc. Which is very helpful because they can detect things that we can't necessarily detect all the time. Which makes them a quicker method of detecting things.
(A) Attaching importance to wealth
The answer is D because if you should learn more about the topics to see if that is what you want to do. It is always good to have more than just one topic.
We can always make time for what we need to do
This is very important: cut unnecessary things.