You can download the answer here
bit.
ly/3a8Nt8n
i think it’s B if not then it’s C
Energy is transported by photons from the Sun to Venus (radiation).
It should be igneous rock if that's an answer
The correct answer is option B and C, that is, they do not share similar stimulus characteristics and include a restricted number of stimuli.
An arbitrary stimulus class refers to predecessor stimuli, which induce the similar reaction, however, they do not share relational feature and do not resemble each other in physical form. For example, cheese, peanuts, chicken breasts, and coconut milk are the members of an arbitrary stimulus class if they induce the response, that is, sources of protein.