Answer:
c. just a few weeks to install.
Step-by-step explanation:
ERP is known as Enterprise Resource Planning.ERP implementation involves software installation, transfer of the financial data to the new system, configuration of the users and processes and training the users on the software.
It also involves upgrades after installation,cross-functional teams, intensive training, high funding for both initial cost and maintenance. This whole process usually takes place between 6 months to 2 years. This makes option C which says it takes few weeks to install incorrect.