Question

this is a common problem__the teen agers​

Answer 1

this is a common problem nowadays, the teenagers

Answer 2

$\textsf{\underline{\large{Answer:}}}$

→ This is a common problem among the teenagers.

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$\textbf{\underline{\underline{Additional\:Information:}}}$

→  Students usually get confused while using two basic terms, i.e ' between ' and ' among ' . The simple difference is that ' between ' is used for two different things, which are completely separated to each other.

→ Among is used for similar things/groups, which are not totally separated.

→ Example :

She left her home between 2004 - 2010

This rabbit was playing among the trees.

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