Which of the following phrase would be used in (A) to form a contextually and grammatically correct sentence?

• A. some mechanical skill could carry out.
• B. That would cut off access to about a fifth of the world's oil and a quarter of its natural gas.
• C. threaten to pull the UK and the international community into the escalating friction between Washington and Tehran.
• D. deepen cooperation with other signatories instead of breaking the deal
• E. None of these