General rules for changing direct speech into indirect speech. Omit all inverted commas or quotation marks. End the sentence with a full stop. If the verb inside the inverted commas/quotation marks is in the present tense, change it into the corresponding past tense.
B: <span>The astronomy club chose to place the telescope on the tripod.</span>
Answer: 3, "We are going depleting in the mountains this weekend'
Explanation: Depleting means "diminish in number or quantity'. It would make no sense to use that in this particular instance.