In most extended argumentative passages
1. Premises and conclusions make up a large portion of the total wordage.
2. Premises and conclusions make up only a small portion of the total wordage.
3. Premises and conclusions are usually clearly labeled.
4. Premises and conclusions are equal in number.

Explanation:

Extended argumentative passages usually consists of a set of arguments that has two or more other sub-arguments. These sub-arguments are not presented with separate conclusions rather they are concluded in the main conclusion.

Extended argumentative passages are commonly found in editorials, essays,  and newspapers.

To analyse an argumentative passage, writers usually try to omit irrelevant materials and try to isolate premises and conclusions, therefore, making premises and conclusions make up only a small portion of the total wordage.

d. the polar jet stream   lies between the polar easterlies and trade winds should be your answer