How are the male and female gametophytes of pteridophytes and gymnosperms different from each other?

Lichen is usually cited as an example of ‘symbiosis’ in plants where an algal and a fungal species live together for their mutual benefit. Which of the following will happen if algal and fungal partners are separated from each other?
a. Both will survive and grow normally and independent from each other.

b. Both will die.

c. Algal component will survive while the fungal component will die.

d. Fungal component will survive while algal partner will die.

Based on your answer how do you justify this association as symbiosis

Draw labelled diagrams of

a. Female and male thallus of a liverwort.

Draw labelled diagrams of

b. Gametophyte and sporophyte of Funaria.

Draw labelled diagrams of

c. Alternation of generation in Angiosperm.