Pankaj0901 I'd say these nitpicks should be last thing you worry in SC , this question has concrete error like Freud counted ability of love as hallmark(singular)
Since the middle part is a non essential modifier. Also it makes sense meaning wise to say hallmark of something rather than to be full maturity's hallmark. Not satisfied yet? Here's the thing you pointed out
For working vs for work
The police caught the man for stealing coconuts (not sure if that's a thing)
Now notice you cannot do the same thing replacing for + verbing with just for + verb. There'll be mostly a change of meaning
Also for what's it worth I see a bunch of people using parallelism to prove this wrong I don't think so along with is a parallelism marker. I'm not sure about it
Jake is playing & dancing(Cool parallelism
Jake is playing,along with dancing,everytime I see him(doesn't have to be necessarily parallel)
Jake is playing, along with dance, everytime I see him
Now if you ask me I'll pick second over third because it's a better way to write
Kudos if i was of any help
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