Here are some words translated from an artificial language.
I. agnoscrenia means poisonous spider
II. delanocrenia means poisonous snake
III. agnosdeery means brown spider

Which word could mean "black widow spider"?

Explanation:-

In this language, the noun appears first and the adjectives follow. Since agnos means spider and should appear first, choices a and d can be ruled out. Choice b can be ruled out because delano means snake.