For the writer (seller) of a call option, it represents an obligation to sell the underlying security at the strike price if the option is exercised. The call option writer is paid a premium for taking on the risk associated with the obligation.
Definition of gonad. : a reproductive gland (as an ovary or testis) that produces gametes.
The gonads consist of ovaries in the female and testes in the male. These glands produce hormones important in the development and functioning of the reproductive organs. they are under the control of the pituitary gland, and produce the secondary sexual traits.