Which best serves as the title for the passage?

Câu hỏi: Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions.
Oil prices dropped on Friday as traders feared that an Opec deal to slash global supplies by 10% would not offset a historic drop in demand due to the coronavirus outbreak.
The price of Brent crude fell nearly 2.5% to $31.82 per barrel on Friday, despite news that the oil cartel and allies, known as Opec+, had reached a deal that would end a price war between Saudi Arabia and Russia that threatened to flood the market with more oil than the world could use.
Mexico initially cast some doubt over Opec’s plans, after apparently refusing to sign up to its share of cuts, which would have been 400,000 barrels per day (bpd). The country instead offered to cut 100,000 bpd. The country signalled on Friday that the US may be willing to make further cuts to its production in order to allow Mexico to make less stringent reductions. Mexican president Andrés Manuel López Obrador said that US president Donald Trump had agreed to help out by cutting additional US output.
However, G20 energy ministers did not mention production cuts in a statement released after a virtual summit hosted by Saudi Arabia on Friday. The meeting had been expected to seal the deal on production cuts, but the statement pledged that the G20 would work together to ensure oil “market stability”. “We commit to ensure that the energy sector continues to make a full, effective contribution to overcoming Covid-19 and powering the subsequent global recovery,” the statement said.
Which best serves as the title for the passage?
A. A historic drop in in oil demand.
B. Mexico’s doubt over Opec’s plans.
C. Oil prices fall again despite Opec+ deal to cut production.
D. G20 energy ministers and production cuts.