Why did Trump meet with Trudeau?

Choices:
A. It was the annual summit in Canada
B. they went to a concert together
C. it was election day in Canada
D. not enough information
It was the annual summit in Canada
QUEBEC CITY — Emotions were on display when U.S. President Donald Trump met other G-7 leaders at their annual summit in Canada on Friday, but the discussions were civilized and diplomatic, according to sources.
Trump held firm on asserting the United States is disadvantaged when it comes to trade with its European allies.
“The other leaders presented their numbers and Trump presented his,” a G-7 official who spoke on condition of anonymity told the Reuters news agency. “As expected he did not budge. This is probably not because he does not understand, but because of domestic reasons.”
At a bilateral meeting later with the summit's host, Justin Trudeau, the U.S. president joked that the Canadian prime minister had agreed to “cut all tariffs.”
Despite the two leaders exchanging criticism of each other’s trade policies the previous day, Trump described the cross-border relationship as very good, stating “we’re actually working on cutting tariffs and making it all very fair for both countries. And we’ve made a lot of progress today. We’ll see how it all works out.”
In a subsequent sit-down meeting with French President Emmanuel Macron, Trump said “the United States has had a very big trade deficit for many years with the European Union and we are working it out. And Emmanuel’s been very helpful in that regard.”
Macron responded that he had a “very direct and open discussion” with Trump and "there is a critical path that is a way to progress all together.”
Canada’s foreign minister, Chrystia Freeland, confirms she met on Friday with U.S. Trade Representative Robert Lighthizer to discuss the tariffs and the fate of the North American Free Trade Agreement (NAFTA). She said Canada, however, will not change its mind about the U.S. steel and aluminum tariffs which she termed “illegal.”
Trump imposed the tariffs on the grounds that weak domestic industries could affect U.S. national security.
America’s closest allies, Canada, Mexico and the European Union, are introducing retaliatory tariffs.