A: full of significance and purpose
It's simple, the answer is 'a'.
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The correct answer is to B. De-emphasize the subject.
Very often the subject can be completely omitted.
Burglars committed the crime
The crime was committed (by the burglars).
In the passive version, the subject is irrelevant.
Answer: No you can not put a price for happiness. It’s an emotion.
Explanation: happiness comes from joy and pure goodness. Sure money can buy some happiness. But it does not last forever. That is why true happiness does not have a price but is highly valued.
A. Increases your risk of being involved in a collision