How can outsourcing project work alleviate problems associated with multiproject resource scheduling? $($You may select more than one answer. a$)$ Outsourcing can be used to avoid resource bottlenecks.

b$)$ Outsourcing can be used to improve utilization of critical resources.

c$)$ Outsourcing can be used to reduce project slippage.

d$)$ Outsourcing can be used to build a WBS more efficiently.

e$)$ Outsourcing can be used to reduce the risk of increased slack.