Answer:
Problem and solution is the answer
Explanation:
C. cause and effect
<em>HOPE</em><em> </em><em>THIS</em><em> </em><em>HELPS</em><em> </em>
<em>Please</em><em> </em><em>mark</em><em> </em><em>me</em><em> </em><em>brainliest</em><em> </em>
That is the smooth endoplasmic reticulum.
You can tell because there are no ribosomes on it.