All of the Following Could Be Common Obstacles to Implementing

All of the following could be common obstacles to implementing data analytics in SCM, except for:

A) Difficulties in integrating big data with current information systems.
B) Understanding which data to collect and interpret.
C) Gathering and interpreting external unstructured data from social media sites.
D) Updating older legacy systems found in many companies, including heavy reliance on spreadsheets.
E) Overcoming objections of senior management as to the merits of implementing big data in SCM.