Which of the following meanings properly explains the word 'trawling'?

• A. Trawl: to pull a large, cone-shaped net through the sea at a deep level behind a special boat in order to catch fish
• B. Trawl: move a lawnmower across a green lawn
• C. Trawl: to search among a large number or many different places in order to find people or information you want
• D. Both 2 and 3
• E. Both 1 and 3