The sunrise is quick and unexpected. Because it is so easy, I would suggest you try to answer this yourself. :)
A prepositional phrase consists of a preposition and its object. Therefore, the prepositional phrase is A, under the wooden bridge.
No, because as you said it "does NOT contain fact-based details" therefore it is not reliable. If something doesn't contain fact-based details, it isn't reliable.
What are the implications of cashless society?
Benefits of a Cashless Society
Paper trails: Financial crime should also dry up. It is harder to hide income and evade taxes when there's a record of every payment you receive. Money laundering becomes much harder if the source of funds is always available. No cash management: It costs money to print bills and coins.
Hope it helps
