Which of the following is a complex sentence?(1 point)

Responses

Her brother said they would be boring, but he absolutely loved them.
Her brother said they would be boring, but he absolutely loved them.

The family made sure they packed warm clothes before their trip up north.
The family made sure they packed warm clothes before their trip up north.

Ellie had been to the mountains, but her brother had never seen them.
Ellie had been to the mountains, but her brother had never seen them.

Ellie wants to go back and eventually live in the mountains someday.

Ellie had been to the mountains, but her brother had never seen them.