Answer: C) it secretes steroid hormones
Explanation: Posterior pituitary only produce oxytocin and vasopressin which are peptide.
Anterior pituitary has control over steroid hormone production, cortisol. It secrets adrenocorticotropic hormone which stimulates these steroid hormone production.
It also secrets some hormones such as luteinizing hormone, which helps in ovulation, are placed in the class of steroid hormones.