You will be given a definition of a task first, then some input of the task.
In this task, you're given a question, a context passage, and four options which are terms from the passage. After reading a passage, you will get a brief understanding of the terms. Your job is to determine by searching and reading further information of which term you can answer the question. Indicate your choice as 'a', 'b', 'c', or 'd'. If you think more than one option is plausible, choose the more probable option to help you answer the question.

Question: In what county is the Melrose Historic District locted? Passage:The Melrose Historic District is a nationally recognized historic district located in Iowa City, Iowa, United States. It was listed on the National Register of Historic Places in 2004. At the time of its nomination it consisted of 134 resources, which included 112 contributing buildings, one contributing site, 20 non-contributing buildings, and one non-contributing structure. This neighborhood first developed as a sparsely populated rural area, and between World War I and World War II developed into an automobile suburb. It grew along with the University of Iowa when it expanded to the west side of the Iowa River, and it borders the large University of Iowa Hospitals and Clinics complex. Among the prominent people who lived here was Howard Jones who coached the Iowa football team from 1916 to 1923. Other prominent residents included professors and local professionals and politicians.
Links: a. Iowa City, Iowa b. Iowa Hawkeyes football c. Iowa City, Iowa d. National Register of Historic Places property types
Output:
a