What is the noun clause in the sentence "whatever crawls in is trapped." and the function of the noun clause

The noun clause in this sentence is Whatever crawls in

A noun clause is used to name something when a single word is not enough. It is a dependent clause and it can not stand alone.

A noun clause usually starts with such keywords as: how, that, what, whatever, who, whoever etc.

A noun clause can function as a subject of a verb : Whatever crawls in is trapped, as an object of a sentence, as a subject complement or as a object preposition.

the correct answer is   d. a picture depicting people applauding a country's leader.

in ray bradbury's short story "a sound of thunder", mr. eckels's fearfulness leads to drastic consequences for the rest of the world.

in the story, mr. eckels, who is a hunter, hires a time travel company to travel to the age of dinosaurs. although he is excited for the hunting expedition at the beginning, when they reach there and mr. eckels sees the tyrannosaurus, he feels frightened. as he is afraid of the tyrannosaurus, he steps off the path although he has been warned not to do it. by stepping off the path, the entire course of the future is affected: mr. eckart alters the future by stepping on a butterfly, which causes a new man to be elected president in the future. in that way, it is mr. eckart's fearfulness what triggers 'the butterfly effect' and what leads to drastic consequences for the rest of the world.