4. On January 1, 2014 Black Cat Company installed $60,000 worth of fiber optic cable to be used by their computer network. Black Cat wrote these items off as "Network Expense" and recorded it on that day. As part of the audit process, Black Cat discovered that these costs should be capitalized as "Network Asset" and depreciated straight-line over 5 years, with no salvage value. (a) What correcting entry would Black Cat need to make to correct this error? (b) If Black Cat did not catch the error until December 31, 2015, what correcting error would be needed then