Build a rigid backbone through the core of the building with diagonal steel braces
You're on the right track!

A rigid core made of diagonal steel braces would do a good job holding the tall, wobbly building together while the ground shakes during an earthquake. But there is another material that you should add to the core of the building. It tends to be cheaper than steel, and it has great stiffness in the horizontal direction -- a great characteristic to have in an earthquake.

Try again!