1. which is an open-ended question that could be used to start a discussion?
do you take the bus?
why do you think the bus should run more often?
what time does the last bus leave?
how many people take the bus?

An open-ended question is that could be used to start a discussion, 'Why do you think the bus should run more often?' is an open-ended question.

B

Explanation

A question which does not have an answer as 'yes' or 'no' are open-ended questions.

They are questions where the answers are expected to be more than a single word.

To start a group-discussion or conversation, these questions play a vital role in bringing opinions of everyone participating in the discussion or conversation.

The rest questions mentioned above have answers only as 'yes' or 'no'.

read the excerpt from “the blackfeet creation.”

what does this excerpt show about blackfeet culture?

the blackfeet prefer to eat cooked meat.

the blackfeet eat small game as well as buffalo.

the blackfeet believe that buffalo are sacred.

the blackfeet animals for providing them with food.

often a noun phrase is just a noun or a pronoun:

people like to have money.

i am tired.

it is getting late.