Which line would you remove in the GRUB’s menu to prevent an automatic installation from commencing when booting from CD or DVD, but without intentions of installing?

Which line would you remove in the GRUB’s menu to prevent an automatic installation from
commencing when booting from CD or DVD, but without intentions of installing?

A.
install=default

B.
install=true

C.
install=always

D.
install=yes

E.
install=now

Explanation:
To ensure the system boots without starting the installation, make sure the entry you
choose to boot does not have the install=true boot property specified in its kernel line.
Reference:Oracle Solaris 11 Express Automated Installer Guide,Boot the Install Environment
Without Starting an Installation