The correct options are
A It was written in Sanskrit.
B It gives the genealogy of Harshavardhana.
C "Harshacharita" means the deeds of Harsha.
Harshavardhana ruled nearly 1400 years ago. His court poet, Banabhatta, wrote his biography, the Harshacharita(the deeds of Harsha), in Sanskrit. This gives us the genealogy of Harsha, and ends with his becoming king, thus it's a partial biography.