Which of the following has been observed in practice using human mobility data and computational modeling of epidemics?

Group of answer choices

There is a strong correlation between the time it takes for a pandemic to reach a certain location and the geographic distance between that location and the origin of the epidemic

There is a strong correlation between the time it takes for a pandemic to reach a certain location and the effective distance between that location and the origin of the epidemic

The effective distance calculation depends on the specific pathogen

The effective distance between two locations i and j is given by $1-$pi$.$j