Final answer:
The best representations of the central idea are that puppetry is an impressive art form and that theatre, which includes puppetry, is a powerful and enduring means of storytelling grounded in universality.
Step-by-step explanation:
The choice of the two sentences that best represent the central idea of the text related to puppetry is subjective, but based on the provided excerpts, we can deduce that puppetry is a longstanding, universal form of storytelling that engages its audience and requires skill and dedication. Therefore, sentences "The art of puppetry is incredible." and "What makes theatre such a powerful and long-lasting art form is that despite differences in location, time period, genre, or level of experience, it grounds itself in a universal concept." accurately encapsulate the central ideas presented in the excerpts. Sentence (b) speaks to the awe-inspiring nature of puppetry as an art form, and sentence (d) touches on the timeless and universal appeal of theatre, which includes puppetry.