It really depends on the person and how poignant that blog post is.
Poignant means deeply moving, so if you are touched by what you read in the post, you may still think about it in the days to come. It depends on what kind of a person you are - if you are emotional, easily touched, etc.
D, Was is the answer, a being verb is showing the state of being such as (am, is, are, was, were, be, being, been.