A – insulin can fit in the pancreas row.
B – Adrenaline increases heartbeat rate, so this option can fit in the first row
C – Pituitary gland is the gland which secretes ADH, so it fits.
D – Testes secrete testosterone so it fits in the fourth row
E – Ovary secretes oestrogen so it fits in the second row
F – Carbohydrase is an enzyme. It is neither a gland, hormone nor a function. So it does not fit anywhere, hence is the correct answer.
G – ADH (hormone in third row) regulates water level in blood. So this fits.