Instructions: In this task, you will be presented with a passage and have to answer a question based on your understanding of the events inferred from the passage. Among the entities, try to find the best entity that is most likely to fill in "_" and classify the answers based on options.
Input: Da Nang, Vietnam (CNN) President Donald Trump suggested on Saturday he's done confronting Russian President Vladimir Putin over his country's election meddling since it's insulting to the Russian leader. Trump said he took Putin at his word that Russia did not seek to interfere in the US presidential election last year, despite a finding from US intelligence agencies that it did. The fraught relations between the two leaders was underscored anew when Putin's spokesman initially said election meddling did not come up when they spoke, even though Trump said it did. And he stressed that bigger issues persist between the United States and Russia that require the two leaders to move on."He said he didn't meddle," Trump saidTrump spoke to reporters aboard Air Force One in Vietnam 
 Questions:But on his flight, which departed Da Nang in the early evening Saturday, _'s simmering anger over the Russia matter burst forth. (A) Da Nang (B) Vietnam (C) CNN (D) Donald Trump (E) Russian (F) Vladimir Putin (G) Putin (H) Russia (I) US (J) United States (K) Air Force One
Output:
(D)