Of the following items, which form of currency is the most durable and portable?

rice

cattle

olive oil

tulip bulbs

In the early 1800s, which of the following was not authorized to issue currency?

cities

stores

churches counties

The items which are most durable as a form of currency (and are also the most portable) would most likely be olive oil. Olive oil has a long shelf time and doesn't require nor take up much space. It is very precious in lower quantities and is therefore a good currency.

In the early 1800s, stores weren't authorized to issue currency themselves.