The option to expand if the immediate investment project succeeds. The option to wait (and learn) before investing. The option to shrink or abandon a project.

Give an example in business for each of the following real options with clear explanations. If you manage to put some numbers in your examples and sketch how you may value such optionality the better 

The option to expand if the immediate investment project succeeds.

The option to wait (and learn) before investing.

The option to shrink or abandon a project.