Question

1. which of the following informational passages offers the best example of academic discourse?

• special features enabling vehicles to run on e85 can add a minimal cost to their purchase price. they have a solid performance history, manufacturers provide regular warranties for ffvs equal to those for gasoline vehicles at no extra charge.
• special features enabling vehicles to run on e85 can add a minimal cost to their purchase price. they have a solid performance history. manufacturers provide standard warranties for ffvs equal to those for gasoline vehicles at no additional charge.
• special things enabling cars to run on e85 can add less cost to their sticker price. because they have a good performance history, car makers provide standard warranties for ffvs equal to those for gasoline vehicles at no extra charge.
• special features enabling vehicles to run on e85 can add a minimal cost to their purchase price. because they have a solid performance history, manufacturers provide standard warranties for ffvs equal to those for gasoline vehicles at no additional charge.

Explanation:

To determine the best academic discourse, we analyze language formality, precision, and logical structure:

• The first option has a run - on sentence (no period between "history" and "manufacturers").
• The second option uses proper punctuation (period after "history"), formal terms ("special features", "minimal cost", "manufacturers"), and clear structure.
• The third option uses informal language ("special things", "less cost", "car makers") and a less precise tone.
• The fourth option, while having a logical "because" clause, the second option's clear separation of ideas with a period and formal wording makes it more academic - like in terms of written discourse structure (proper sentence separation for clarity, which is important in academic writing).

Answer:

B. Special features enabling vehicles to run on E85 can add a minimal cost to their purchase price. They have a solid performance history. Manufacturers provide standard warranties for FFVs equal to those for gasoline vehicles at no additional charge.