Monoecious plant of Chara shows occurrence of :

Options

(a) stamen and carpel of the same plant
(b) upper antheridium and lower oogonium on the same plant
(c) upper oogonium and lower antheridium on the same plant
(d) antheridiophore and archegoniophore on the same plant

Correct Answer:

upper oogonium and lower antheridium on the same plant

Explanation:

Male sex organ is called antheridium or globule while female sex organ is called oogonium. They develop on the same branchlet in the same plant in chara.