An idiom/phrase is used in three sentences. You need to choose the option that correctly identifies the sentences in which the idiom/phrase has been used appropriately. GREEN THUMB
A. Despite having little formal training in botany, the researcher displayed a remarkable green thumb by successfully cultivating several rare medicinal plants in difficult climatic conditions.
B. The investment banker’s green thumb enabled him to negotiate complex international trade agreements with exceptional diplomatic skill.
C. Owing to her green thumb, the abandoned community garden was transformed into a flourishing ecological space within a few months.