Seedlessness in most of the grape variety is due to:

Correct option is C

The correct answer is Stenospermocarpy.

• Seedlessness in grapes is primarily due to stenospermocarpy.
• In this process, pollination and fertilization occur normally, and seeds begin to form, but the embryo aborts at an early stage.
• Despite embryo abortion, the berries continue to develop and usually contain only rudimentary seeds, as seen in ‘Thompson Seedless’ grapes.
• The exact mechanism of stenospermocarpic seedlessness has not been fully understood until now.