Which sentence below is a simple sentence?
a.
geese mate for life unlike humans who, according to the divorce rate, seem to have trouble committing to just one person.
c.
i do not own a porsche.
b.
scientists are working on a cure for the common cold and, when they find one, think how remarkably it will change the profits of the kleenex and drug industries.
d.
susanne wanted to be here, but she cannot come because her car is in the shop.

Identify the trade regulation concept described in each scenario. protectionism free trade trade war country a and country b want to develop their respective export markets. both countries have highly developed agricultural, industrial, and service sectors. the countries decide to initially lower trade barriers and eventually remove them completely. arrowright country a has an agrarian economy with an emerging industrial sector. to allow domestic industries to grow, country a applies quotas on all industrial products except those that are used as resources. arrowright country a passes an economic policy that will indirectly give its own companies an advantage over country b’s companies. country b alleges that the policy violates the countries’ trade agreement and imposes retaliatory tariffs. arrowright