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Offshore oil-drilling operations entail an unavoidable risk

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Re: Offshore oil-drilling operations entail an unavoidable risk [#permalink]

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New post 14 Aug 2017, 21:59
Merged topics. Please, search before posting questions!
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Please Read: Verbal Posting Rules

Kudos [?]: 9 [0], given: 32

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Joined: 05 Aug 2011
Posts: 19

Kudos [?]: 5 [0], given: 40

Location: United States (NY)
Undergraduate: Stanford
GMAT 1: 700 Q44 V40
GMAT 2: 700 Q47 V40
WE: Asset Management (Consulting)
Re: Offshore oil-drilling operations entail an unavoidable risk [#permalink]

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New post 09 Dec 2017, 19:40
Offshore oil-drilling operations entail an unavoidable risk of an oil spill, but importing oil on tankers presently entails an even greater such risk per barrel of oil. Therefore, if we are to reduce the risk of an oil spill without curtailing our use of oil, we must invest more in offshore operations and import less oil on tankers.

Which of the following, if true, most seriously weakens the argument above?

A. Tankers can easily be redesigned so that their use entails less risk of an oil spill.
B. Oil spills caused by tankers have generally been more serious than those caused by offshore operations.
C. The impact of offshore operations on the environments can be controlled by careful management.
D. Offshore operations usually damage the ocean floor, but tankers rarely cause such damage.
E. Importing oil on tankers is currently less expensive than drilling for it offshore.

Four Step Process:
1. Identify question. It's a weaken.
2. Deconstruct argument.
- Conclusion: Let's invest in offshore drilling, rather than receive imported oil via tankers
- Premise: Imported oil via tankers carries greater risk than oil derived via offshore drilling

3. The correct answer provides a reason the argument doesn't work.

4.
A: Tankers can easily be redesigned so that their use entails less risk of an oil spill.
- Hold

B. Oil spills caused by tankers have generally been more serious than those caused by offshore operations.
- Strengthen

C. The impact of offshore operations on the environments can be controlled by careful management.
- Strengthen

D. Offshore operations usually damage the ocean floor, but tankers rarely cause such damage.
- Hold

E. Importing oil on tankers is currently less expensive than drilling for it offshore.
- Irrelevant. We want a reason why oil tankers do not carry more risk vs offshore drilling

A vs D
A: This addresses the risk component
D: This is a reason not to receive oil via tankers, but it doesn't address the risk component without the use of an outside assumption

My selection: Choice A

Kudos [?]: 5 [0], given: 40

Re: Offshore oil-drilling operations entail an unavoidable risk   [#permalink] 09 Dec 2017, 19:40

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