Bushido mentions the eight virtues of a Samurai being: Morality, courage, compassion, politeness, honesty/sincerity, respect, loyalty, character plus self-cControl. For a detailed explanation on each virtue visit our Web site at www.scrumsolution.co.za/Blog/Bushido.2
It's not the broadest: the broadest is M3. Also, it's not true that it consists of assets that are not liquid.
The best answer is that it represents money that people have easy and immediate access to
THE ANSWER IS B. Bronze Age metals could be used in wider applications and were more durable than stone.