Answer:
b. Hiring many IT staff skilled in the latest technologies
Explanation:
Redesigning the business process, integrating various information systems and changes in how people do their work are challenges associated with the implementation of enterprise system.
On the contrary, hiring many IT staff skilled in the latest technology is not necessarily a challenge as most enterprise systems are fairly easy to use and do not require sophisticated skills and most of the packages also come with manuals which will help workers adjust to it. An example of enterprise system is SAPs.