Question

which detail supports the idea that experts traced the path of the ebola virus?
olab workers who cared for the monkeys were interviewed.
o four or five laboratory workers cared for the animals.
o there was a 50 - 90% mortality rate of those infected.
o officials played down the seriousness of the virus.

Explanation:

Interviewing lab workers who cared for the monkeys is a method used to trace the path of the virus. The other options either provide general information (number of workers, mortality rate) or a different action (officials playing down the virus) that do not directly relate to tracing the virus's path.

Answer:

Lab workers who cared for the monkeys were interviewed.