First intergeneric hybrid between radish and cabbage was made by

Answer: Option D

The first intergeneric hybrid between radish and cabbage was made by Karpenchenko (1927).
The first Raphanobrassica or "rabbage", an allopolyploid cross between the radish (Raphanus sativus) and cabbage (Brassica oleracea), was obtained by the Soviet agronomist Georgi Dmitrievich Karpechenko, in 1928.
Plants of this parentage are now known as radicole. Two other fertile forms of Raphanobrassica are known.