<span>Primary elections were more important that general elections in the twentieth century of Texas because Texas was a one-party state, and in a one-party state, the winner of the primary will probably win the general election.</span>
It was the war that gave birth to modern warfare, introducing machine guns, artillery, and chemical weapons. With new technology, came the need for new tactics and old generals didn't do that, which led to the meat grinder of trench warfare.
<span>Henry Clay, U.S. senator from Kentucky, was determined to find a solution. In 1820 he had resolved a fiery debate over the spread of slavery with his Missouri Compromise. Now, thirty years later, the matter surfaced again within the walls of the Capitol. But this time the stakes were higher -- nothing less than keeping the Union together.</span>
The correct answer to this open question is the following.
There is no question here. It is just a statement.
However, doing some research we can say that the proper question for this statement is the following: <em>"Is Mark's service in a jury a responsibility or an obligation?"</em>
If that is the case, then the correct answer is "an obligation."
According to the laws of the state, an individual who is summoned by the state to be part of a jury has the obligation to attend. If he or she does not attend, he should be fined according to the law. If the individual cannot attend, it has to be for a very important situation that has to be explained. Otherwise, the state will consider his +/her negativity to attend as a contempt of court.