Choose the most appropriate option for the gap labelled 12.

Setting up a news paper involves a lot of preparations. The __11__ has to employ a lot of people. Other people working with him are cartographers, editors, typesetters, readers, who work in various ways to produce the text of the newspaper, __12__, who go out and collect story and items of news, and __13__, who specialize in one kind of topic. Another important person who works closely with the Editor-in-Chief is the __14__, who has to choose the most important stories__15__ go through stories sent to them and make necessary adjustments.

The Editor-in-Chief could determine for instance, whether a particular journalist should write articles daily or weekly in a particular column. Such a journalist is known as __16__. The editorials of the news paper will be coordinated by __17__. The publisher could decide to establish __18__ which would be on sale weekly, fortnightly, or monthly,__19__ the eyes catching, screaming headlines and captions of newspapers on sale everyday from the __20__.