In the introduction of her speech on bike paths, shannon mentioned her involvement with a local cycling club and her work on a grant requesting state funding for a local bike trail. by sharing this information with her audience, shannon was seeking to accomplish which goal of a speech introduction

The correct answer is Establish credibility.

Explanation:

When Shannon mentions her involvement with the local cycling club and her work on a grant requesting funding for a local bike trail, she's basically trying to establish credibility showing that she's in a position of knowledge about the topic her speech is about, she's demonstrating that she knows what she's doing and saying therefore she's stablishing credibility among the listeners of her speech by using factual evidence.

explanation:

allergens: overstimulate the nerve system

neurotics: attack nerve cells

mutagens: damage or otherwise alter dna sequence

generators: cause defects during growth and development  

carcinogens: cause unchecked cell growth

i hope you get the idea according to me these are the effects that happened.