Li chang has recently started his own business. he plans to launch his design for an application (app) for a smartphone. all of his direct
competitors have put up their apps to be downloaded (online) for free. he wants to follow the same advertising policy that his competitors are
using. all the apps that are similar to his are available at a common portal. which p of marketing should li chang concentrate on to differentiate
his app?
li chang should concentrate on his
to differentiate his app from those of competitors.

I feel Chang must work hard on the promotion part of the P.

Explanation:

And that requires a very broad range of marketing, and top-quality branding for luring more users to use the app. And the competitors are selling for free and the product is same as well, and he cannot do anything with the place as the competitors have launched their app on play store. Hence, it’s the promotion that is most important, and at large scale as competitors are selling their apps for free. So, Chang need to prove that his app is better through large scale promotion.  

answer; correction;

okay, so i know we just goofed around in that chat, but ive been like genuinly depressed, like medically depressed for almost 4 years now. i had my first panic attack when i was 8. i woke my mum up and told her i felt like i was in a dream. like i was a goldfish in a bowl, looking at all these things going on around me and feeling . tiny. wort hless. and i now am now 17 y/o. i still feel those emotions daily. life used to go by so quick.like every day i would wake up and just like want to go back to bed cause i always felt like i was in the wrong place. i guess looking back, i was in the wrong state of mind. i took a expensive like nice trip to whyoming with my grandfather and ha ted it. like idk why. i would have loved it now, but i found myself writing in a journal everyday because i would forget what happened the day before, couldnt remember what i ate for like the previous meal. just my memory left me for the week i was there. worst feeling ive ever experienced.