ANSWER: 

You can answer one Azaan and there’s no prohibition in talking during Azaan. 

Kindly reference the following link(s):

https://youtu.be/zfbHN0E_0io

Sheikh are we supposed to keep quiet on the first adhan only or if there are 3 to 4 masajid in our area and they give adhan one after another so we should still keep quiet till all of them are finished. and answer them all. please guide me

Prayer | December 25, 2017 5:41 pm
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I was in a shopping mall when the time for maghrib came. They had a prayer room. When I went inside I saw women in the back, and there was no partition. I didn’t know If i should just walk to the front and pray there or not. I just decided to pray in my car. Did I do the wrong thing.
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In Salah, after reciting Surah Fatiha, if I read little portion from a middle of Surah, do I need to say Bismillah or AuzuBillah even if I have recited Bismillah and AuzuBillah at the beginning of Salah?