Question

total merchandise exports (2010 - 2012)
exports (trillions of us dollars)
united states
china
2010
2011
2012
which might be a better title for this graph?
total exports for the united states and china
trade between china and the united states
unemployment in the united states and china
the history of international trade

Explanation:

The graph shows total merchandise exports of the United States and China from 2010 - 2012. The best - fitting title should focus on these exports. The first option directly relates to the content of the graph. The second option is too broad as it doesn't specifically mention exports. The third option about unemployment is unrelated. The fourth option about the history of international trade is also too broad for this specific graph.

Answer:

Total Exports for the United States and China