Do you think Han officials would be pleased about trading bolts of silk for 200 horses? Explain

Yes, I believe they would.

Explanation:

Bolts of Silk was considered a luxurious goods during that time period. It mostly sold toward nobles with a really high price.

That's being said, the Han officials main interest during their reign was not economic growth. They wanted to acquire the territories of other empires that were  located in Central Asia. In order to do this, they initiated several war campaigns throughout that region.

For war campaigns, horses are far more valuable than silk. They can be used as cavalries or methods of transportation to deliver supplies for their soldiers.  This was the reason why they would probably be content with that exchange.