Type of parthenocarpy in sindhu variety of Mango is

Answer: Option A

Stenospermocarpy is the type of parthenocarpy in the Sindhu variety of mangoes.
Stenospermocarpy is the production of abortive incompletely developed seeds and is caused when the trees of mango are exposed to low temperatures during the flowering period, interfering with the pollination and fertilization of the fruit.
Sindhu is a parthenocarpic seedless variety, that possesses a very thin stone and good quality fruit.