Explore this Hidden waterfall in Goa #shorts #goa

What are the elders in Goa nostalgic about?

In the given sentence, identify the segment which contains the grammatical error. A Royal Bengal tigress and her three cubs was poison and their carcasses left to rot in the Wildlife Sanctuary in Goa (a) A Royal Bengal tigress (b) and their carcasses left to rot (c) in the Wildlife Sanctuary in Goa (d) and her three cubs was poison