An $8$-bit microcontroller with $16$ address lines has $3$ fixed interrupts i.e., $\text{Int 1}$, $\text{Int 2}$ and $\text{Int 3}$ with corresponding interrupt vector addresses as $0008\text{H}$, $0010\text{H}$ and $0018\text{H}$. To execute a $32$-byte long Interrupt Service Subroutine for $\text{Int 1}$ starting at the address $\text{ISS1}$, the location $0008\text{H}$ onwards should ideally contain
- a $\text{CALL}$ to $\text{ISS1}$
- an unconditional $\text{JUMP}$ to $\text{ISS1}$
- a condition $\text{JUMP}$ to $\text{ISS1}$
- only $\text{ISS1}$