Answer: A. NTD started incorporating ASL interpreters in their productions.
Step-by-step explanation:
The National Theatre of the Deaf (NTD) empowered Deaf audiences everywhere by showing that the Deaf could act in theatre production by using American Sign Language (ASL) interpreters as artists in their production.
The publicity and impact that this gave sign language and deaf people in general galvanised support for the NTD amongst the Deaf and the world leading to captioned television and telecommunication devices amongst other things being introduced to ensure that more people could participate in the arts.