Ben is interested in using a source that provides original research, current and developing trends and experts within specific fields. which source should he use?

Well should use periodical / trade journals

Explanation:

Ben wants to use a source that provides original research, trends, and current and developing experts in specific areas. He should use periodical / trade journals. This is because a periodical / trade journal article publishes expertly written information to its peers {expert readers, in the same area - or related to the topic}, using scientific language adapted to the theme of the article, and with greater foundation. scientific and methodological research, besides bringing updated information.

By using this type of source Ben's work will be more grounded and therefore better evaluated by any examining board.