Sporangiospores : Sporangium :: Ascospores : _______
Ascocarps
Ascus
Ascorangium
All of these
Sporangium is a sac or capsule like structure containing sporangiospores. Similarly the fruiting body of ascomycetes is known as ascocarp which have Ascus. These ascus contain ascospores. Each ascus usually have generally 8 ascospores.
Ascospores are formed in Ascus.