Read the following dialogue.

Mr. Humphrey: All right, are you excited for today’s class?

Students: Yeah.

Mr. Humphrey: Okay! Anna, could you read the article on page 271?

Anna: Sure, Mr. Humphrey.

[Anna finishes reading]

Mr. Humphrey: Now, let’s discuss the author’s main point of view, shall we?

Analyze the assertions below based on the dialogue.

I. Mr. Humphrey uses the modal verb “could” to make a polite request.

II. “All right”, “yeah”, “okay”, “sure” and “now” are used as discourse markers.

III. In the last sentence, “shall we” is being incorrectly used as a tag question.

Then choose the CORRECT alternative.