What is the result of the following code?

string$1$ db $0$ah$,0$dh$,"$$$"$

Movah, $9$

Mov dx$,$ offset enter$1$

Int $21h$

a$.$ prints an empty line

b$.$ prints Oah,Odh,"$$"$ on the screen

c$.$ prints Oah,Odh on the screen

d$.$ prints Oah on the screen

e$.$ takes Oah,Odh,"$$"$ as input from the keyboard