The dense foliage obscured my view, making every step a cautious one. Sounds of birds and insects echoed through the thick vegetation. Nature's hidden secrets lay concealed within the underbrush, waiting to be discovered.

Which set of context clues best points to the correct definition of underbrush in the 3rd sentence?

The set of context clues that best points to the correct definition of underbrush in the 3rd sentence is "dense foliage," "thick vegetation," and "concealed." These clues suggest that underbrush refers to the dense growth of shrubs, bushes, or small plants that grow underneath taller vegetation.