The rootvg disk on a system failed and was replaced. The system was restored using the latest mksysb. However， no files in the /home filesystem were restored. What is the likely cause of this problem？（）

A. The new drive is too small to hold the entire rootvg
B. The /home filesystem was not mounted during creation of the mksysb
C. The /home stanza in the bosinst.data contained an entry ’restore=no’
D. The /home filesystem was NFS exported to another system during creation of the mksy