Please define a random integral number between $15$ and $25$ and assign the number to Label$1.\_\_\_\_.$

A$.$

Label$1.$text $=(10*$ Rnd$())+15$

B$.$

Label$1=$ Int$(10*$ Rnd$())+15$

C$.$

Label$1.$Text $=$ Int$(10*$ Rnd$())+15$

D$.$

Label$1=$ Int$(10*$ Rnd$())+15$