networks: DNS server does not work: bind9 fatal error

I am an IT student and have been trying to set up a DNS server in VirtualBox. However, it does not work, and when I run the "link status of service 9", it says this:

/etc/bind/named.conf.options:10 expected IP address near & # 39; 8: 8: 8: 8 & # 39;
Load configuration: unexpected token
exit (due to a fatal error)

This is how I named myself .conf.options:

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I'm an absolute novice in Ubuntu and in networks, and I do not know how to solve it, so thanks in advance for any help!