Questions

The solution for all business needs is ERP (Enterprise resource planning).

Enterprise resource planning (ERP) is business process management software that allows an organization to use a system of integrated applications to manage the business and automate many back office functions related to technology, services and human resources.

Makthabs taught the primary education to muslims during the period of sultanate

Computer memory - ROM is essentially empty. ROM is a Read Only Memory which cannot be retrieve.

In the given options, "His stomach rumbled like an approaching train" is an example of Simile.

All the other options are examples of metaphors. 

Simile and Metaphor are both figure of speeches in English which are used for comparing things but the only difference is Simile uses LIKE or AS words in comparing and metaphor directly compares without using any words.