One of the following structures is having green algae component:

Explanation

The correct answer is Soredia. Soredia are specialized structures in lichens, which are symbiotic partnerships between fungi and photosynthetic partners, typically green algae or cyanobacteria. This symbiosis allows lichens to thrive in a wide range of environments by combining the photosynthetic ability of algae with the structural support of fungi.Other options such as spore, conidia, and ascospore are purely fungal structures without any algal component. Spores and conidia are involved in fungal reproduction, while ascospores are formed during the sexual reproduction of Ascomycota fungi.