Read the paragraph below and choose an appropriate main idea.

There are several ways a company can be innovative with their products and services.
By looking at the changes to the customer's lifestyle and needs, we sometimes realise that there might be better ways to serve them. Customers who do not have a lot of time might prefer to have their food or their shopping delivered to their homes, or they might like to do their banking online rather than in an actual bank.
Not all innovation will bring success to our businesses, but it can give us an opportunity to grow and learn more about what we do and what our customers might want.

• Innovations can include changes of the way the services are provided, but not all the changes will lead to success.
• Innovations are unnecessary for the companies because they cannot bring success.
• Delivery "to the door" is a great innovation for any business.
• Businessmen can innovate their companies by different means.