In several fungi and plants the bisexual condition is denoted by

The correct option is A Homothallic and monoecious
Homothallic
Homothallic fungi have male and female reproductive structures on the same thallus.

Heterothallic
Heterothallic fungi have male and female reproductive structures on different thallus.

Monoecious
Monoecious plants have both the male and the female flowers on the same plant.

Dioecious
Dioecious plants have male and the female flowers on different plants.

Terms used to denote bisexual conditions in plants and fungi
Bisexual organisms are those which possess both male and female reproductive organs. Thus in plants, the term monoecious and in fungi, the term homothallic is used to denote the bisexual condition.

Final answer
(a) Homothallic and monoecious