Participles are sometimes confused with verbs because they are made up of:
1) verb + –ing form . This is called PRESENT PARTICIPLE and it has the function of an adjective (not a verb)
Example: The singing bird is beautiful. The word “singing” modifies the noun “bird” and this sentence can be rewritten as “The bird that sings is beautiful.”
2) Verb+ ed / past participle form. This is called PAST PARTICIPLE and it has also the function of an adjective as it provides information or qualities of a noun.
Example: The wounded dog was crying all night. The word “wounded” modifies the noun “dog” and this sentence can be rewritten as “The dog which was wounded was crying all night”
I do not believe a comma is necessary in this sentence at all. In fact, if you were to insert a comma after the word grazed (as you maybe tempted to do) it could change the meaning of the sentence. If you meant the lions were oblivious of the presence of the gazelles, you would insert a comma after grazed. But if you meant the gazelles were oblivious of the presence of the lions, you would leave the comma out.
Answer:
The answer for your question is none of the above in my opinion.
Is a cuz it’s about acting in public like not to eat and throw away trash
