Which one of the following citrus type is source of monoembryonic

Answer: Option C

Pummelo is one of the following citrus types and is the source of monoembryonic.
Citrus maxima are the largest citrus fruit from the family Rutaceae and the principal ancestor of the grapefruit. It is a natural, non-hybrid, citrus fruit, native to Southeast Asia. Similar in taste to a sweet grapefruit, the pummelo is commonly consumed and used for festive occasions throughout Southeast Asia.
The seeds of the pomelo are monoembryonic, producing seedlings with genes from both parents, but they are usually similar to the tree they grow on.