$103.$ An agency CM is representing the public owner of a large, complex project with numerous site challenges. The owner has received numerous differing site condition claims on previous projects on this site. The agency CM has reviewed the bid documents and believes the site challenges are clearly and sufficiently detailed for bidders. This is a design bid built, lump sum procurement. The apparent low bid is more than $10\%$ lower than the next lowest bid, and the owner is very concerned that the apparent low bidder has not included the cost of mitigating the site challenges in is bid. What should the agency CM do$?$

O A$.$ Make the recommendation to the owner to reject all bids and re$-$advertise the project.

O B$.$ Ask the designer to verify that the technical specifications describing the site challenges in sufficient

detall.

O D$.$

Conduct a post$-$bid interview with the apparent low bidder to determine if the bidder has a clear understanding of the site chalienges.

Conduct a post bid conference to see if al biders included the cost of mitigating the site challenges in their bids.