Answer:I would think it would be the last one: Print PSAs focus on more than one idea to share a message.
Explanation:
that is by print it means paper
all the others would only work if electronic PSAs were included, if they were i think it would be all three, but the way the question is worded without knowing the materail i think the latter is your best bet.
each? Could you specify a bit more please.
Answer:
A book was written by Nick
