Step 1: Pituitary - bhaago.
Adenohypophysis (anterior) + Neurohypophysis (posterior) = Pituitary naa bhaago. Statement (a) correct.
Step 2: Hormones - sahi/galat.
FSH - haaan (adenohypophysis); MSH - haaan (pars intermedia); Prolactin - haaan (adenohypophysis). Statement (d) 'Prolactin sraavit nathi karti' = GALAT.
Step 3: ઉttaar.
\\[ \boxed{oxed{(a),\ (b),\ (c) ext{ -- saacha}} \} \]