As per the given description, the exercise practiced by Shana fosters 'convergent' thinking skills as it proposes a concrete solution to provide the best and most effective solution to the problem/question. The concept was coined by Joy Paul Guilford and figures out a single best and most apt solution or answer to a problem contrary to divergent thinking which offers multiple solutions in order to promote creativity. Thus, Shana's exercise to find one tree that matches the description proposes the single most effective and concrete solution to her problem. Therefore, it symbolizes '<u>convergent</u>' thinking.
