Helllp where should i insert a dash or dashes

this is my guess :
In any bad weather- rain, snow, extreme cold -Vince puts a jacket on his dog.
is it right and if wrong how would it be right

The first step in synthesizing is to a. compare a particular source you are considering to the other sources you have already selected. b. parrot what other sources have said. c. ignore sources with information that runs counter to your claim. d. insert large chunks of information from one or two sources into your essay.