The correct option is D Amiable
An amiable person is one having or displaying a friendly and pleasant manner. For example, "the amiable young man greeted me enthusiastically". Hence, Option B is correct. Among the rest of the options, amicable means characterized by friendliness and absence of discord, effusive means showing or expressing gratitude, pleasure, or approval in an unrestrained or heartfelt manner, ebullient means cheerful and full of energy.These do not express the intended meaning, hence incorrect.