Which characteristics are common in impressionist artworks?

choose all answers that are correct.

a.
depictions of moments in time

b.
vibrant colors

c.
depictions of modern life

d.
smooth brushwork

The answers are B and C. This is because...
A) is not something unique to that style, making it an unlikely answer
B) is correct because that style is know for having so much color mashed together that it looks like a blob if you're standing too close
C) is also MOST LIKELY correct due to the fact that impressionistic styles are usually seen in whatever time period they were painted in 
And finally, D) is incorrect because of the same reasons as to why B is correct.