Which of the following has no plural form?

The words “moose,” “sheep” and “shrimp” do not have a plural form, but they can be used in singular or plural form as they are. For example:

– The moose is/are migrating.
– The sheep is/are ready to be fed.
– The shrimp is/are very well cooked.

সুতরাং, সঠিক উত্তর হবে: all of the above.