What is the purpose of digital dactylology? I. To refer to proper names of people. II. To refer to elements that do not have a sign. III. To refer...

What is the purpose of digital dactylology?

I. To refer to proper names of people.
II. To refer to elements that do not have a sign.
III. To refer to linguistic elements that LIBRAS does not understand, such as prepositions, articles, etc.
IV. To refer to acronyms.
V. To refer to linguistic elements from other sign languages.
a) I, II, and IV only.
b) I, II, III, IV, and V.
c) I and II only.
d) I, II, and III only.
e) I and V only.