A Midwife Conducted a Bayesian Analysis of Stork Numbers and Declining

Multiple Choice

A midwife conducted a Bayesian analysis of stork numbers and declining birth rates. She calculated a Bayes factor of 1. Should she use stork numbers to predict birth rates?

A) No, a Bayes factor of 1 suggests that although declining stork numbers appear to coincide with declining birth rates it is not 'worth mentioning' and other factors may be at work.
B) Yes, a Bayes factor of 1 suggests that it is worth trying to increase stork numbers in order to increase the birth rate.
C) No, a Bayes factor of 1 suggests that the data is corrupted.
D) Yes, a Bayes factor of 1 suggests that it is worth heavily investing in reducing stork numbers in order to reduce the birth rate.