The photograph of president obama and new jersey governor chris christy was taken in the aftermath of hurricane sandy? which presidential role does it illustrate?

The photograph of President Obama illustrated that he was doing the role as a chief citizen. As the chief citizen, it is the President's job to represent the people and work for the public interest. Since he is the President, he automatically gets the role as a chief citizen, and will represent the citizens. It's the President's job to get the trust in the citizens, and if he doesn't accomplish that, it'll ruin his reputation.

the section of the chart that represents a point at which a bill needs approval from a majority of people in both chambers to advance is j, as this is the only section before the bill becomes law which has both rows (symbolizing the chambers) converging into one, meaning that the two parts of the congress have to approve of it before it can march on with the process.