The answer is B, public opinion polls
Answer: B: Protectionism
Explanation:
Protectionism is known to be a form of trade policy which the government of a particular country uses to preserve and protect its local industries from other countries. This is used in order to encourage local production of goods and services and make the local goods, cheaper and foreign goods, costly. Types of protectionism include: tariffs, subsidies, import quotas and so on. The most common type of protectionism is tariff. Thus, tariff is known to be a form of tax which the government levied on imported goods and services from other countries.
The most straightforward theory for Western Rome's collapse pins the fall on a string of military losses sustained against outside forces. Rome had tangled with Germanic tribes for centuries, but by the 300s “barbarian” groups like the Goths had encroached beyond the Empire's borders.
Answer: effect or consequence
Explanation:There are three part that makes up an assertive message it's the behaviour,feeling and the effect.
Teh behaviour is explained that William want to go and visit over his friend probably because he wants to relax and his father states his own feelings towards this.
The father thought doesn't state what will be the effect for William if he goes over to his friend which is will be probably more influential in changing his mind about going over to his friend .
The lack of the consequences on the message may make the receiver not see why his behaviour need to change or why he may need to rethink it.
I think the answer is a I hope this helps:)