The correct option is
B Solanaceae
Solanaceae, the nightshade or potato, family of flowering plants (order Solanales), with 102 genera and nearly 2,500 species, many of considerable economic importance as food and drug plants. Among the most important of these, are the potato (
Solanum tuberosum); eggplant (S. melongena); tomato (
Lycopersicon esculentum); garden, or capsicum pepper (
Capsicum annuum and
C. frutescens); tobacco (
Nicotiana tabacum); deadly nightshade, the source of belladonna (
Atropa belladonna); the poisonous jimsonweed (
Datura stramonium) and nightshades (
S. nigrum, S. dulcamara, and others); and many garden ornamentals, such as the genera
Petunia, Lycium, Solanum, Nicotiana, Datura, Salpiglossis, Browallia, Brunfelsia, Cestrum, Schizanthus, Solandra, Streptosolen, and
Nierembergia.
Members of the Solanaceae family are found throughout the world but are most abundant and widely distributed in the tropical regions of Latin America, where about 40 genera are endemic. Very few members are found in temperate regions and only about 50 species are found in the United States and Canada combined. The genus
Solanum contains almost half of all the species in the family, including all the species of wild potatoes found in the Western Hemisphere. The poisonous alkaloids present in some species of the family have given the latter its sombre vernacular name of nightshade.
Thus, the correct answer is option B.