use choose bond

schweser practice book 2: exam 1, afternoon finxed income: q111 when considering choose which ond has most value relative to the risk associated with security, do we always choose the highest OAS? or choose the one has highest OAS/Z-spread? Thanks

I think we should choose the one with the highest OAS as it has removed option risk. Z-spread is like an inferior measure compared to OAS, thus we should always use OAS when available and don’t care about z-spread. Am I correct guys?

Yes you choose the one with the highest OAS.