Answer:
C). Kellen, who graduated with honors, will study microorganisms, sensory neurons, and potential energy.
Step-by-step explanation:
As per the question, the sentence that is accurately written is displayed through option C as it exemplifies a grammatically correct, structurally appropriate, and coherently meaningful sentence. It appropriately uses the relative clause and punctuation.
A relative clause involves a comma right before the relative pronoun which is appropriately exemplified by this option('who' is preceded by a coma(,)). The series of actions that Kellen is going to pursue is also punctuated appropriately('will study microorganisms, sensory neurons, and potential energy'). Thus, option C is the correct answer as the other options either incorrectly punctuate the relative clause or unnecessarily employ (-).