Question

computer-science skills are important in todays world. in countries such as britain, china, and vietnam, most students learn computer programming, also called coding. however, many american schools dont offer computer-science classes. a group called code.org believes this should be changed. the group provides a first step in bringing computer science to u.s. schools. they offer a service called hour of code. hour of code gives students one hour of free online computer-science classes. code.org hopes this program will encourage all schools to teach computer programming. what is the main, or central, idea of the passage? code.org offers a way for more students to learn computer science. hour of code allows students to spend one hour learning computer-science skills. code.org believes that not enough schools in the united states offer computer-science classes.

Explanation:

The passage first mentions the importance of computer - science skills and the lack of computer - science classes in many American schools. Then it focuses on Code.org's efforts. The first option encompasses the overall idea of Code.org's role in providing a means (Hour of Code) for more students to learn computer science. The second option only details a part (the one - hour aspect) of the program. The third option is just a part of the background information presented before introducing Code.org's solution.

Answer:

Code.org offers a way for more students to learn computer science.