![Monoecious plant of chara shows the occurrence of](https://www.gkseries.com/blog/wp-content/uploads/2023/09/Monoecious-plant-of-chara-shows-the-occurrence-of-.jpg)
Monoecious plant of chara shows the occurrence of [AIPMT 2013]
Option 1 : Antheridiophore and archegoniophore on the same plant.
Option 2 : Stamen and carpel on the same plant.
Option 3 : Upper antheridium and lower oogonium on the same plant.
Option 4 : Upper oogonium and lower antheridium on the same plant.