it is in management information system

please answer quickly I don't have time only 5 minutes

I need only the correct answer

Caterpillar shoes are very famous among the footwear brands in the world. They are not able to send their stock to their retailers on time. As a result the company got many complaints from their customers regarding the non- availability of the products. As an information system manager you will make sure that is installed in the company to ensure regular delivery of stock. an O a. Digital transaction system O b. Digital system Oc Enterprise collaboration system Od Electronic data interchange system An analysis of the value chain in Sweet Tea, a chain of fast food companies in Oman, revealed that there are challenges for the company from its customers. Customer feedback shows that the company is not able to incorporate the features and specification which attracts the customers. Suggest a suitable type of information system to the company. an O a Supply Chain Management System Ob Computer Aided Design System Customer Relationship Management System Od Computer Aided Manufacturing System