Answer:Is a beginning section which states the purpose and goals of the following writing.
Explanation:
The fragment <em>near the computer </em>is a prepositional phrase. Since it begins with a preposition <em>near </em>and it doesn't have a verb, it must be a prepositional phrase.
Only number 4 and number 5 used the commas correctly. Hope it helped you.
The men have enough oxygen in their bottles so they are able to complete their climb to the summit of Mt. Everest.
