Under which of the following conditions is Semelparous reproduction (where organisms produces all its offspring in a single reproductive event) is most likely to be favoured? (A) Adult survival rate is low. (B) Adult survival rate is high. (C) Breeding is perennial. (D) Breeding is seasonal.
Adult survival rate being low makes the most sense since only would an organism want to reproduce as soon as it could and also all at once. At the same time, seasonal breeding also doesn't seem far off meaning an organism would only produce all its offspring in one particularly favourable season a d in it, it produces all of it.
This is from an entrance test for a research institute. I am confused between A and D. Reading about Semelparous reproduction didn't help. Please help me solve this one.