Colin uses his phone for everything, so he likes to keep it with him at all times. Lately, though, he's found it difficult to concentrate when he's studying because people often call him or send him a text message. What should Colin do to improve his concentration?
Aleave his phone at home when he goes out to study because he doesn’t need it
Bsilence or turn off his phone while he's studying
Ctell his friends how irritating it is when they call him while he's studying
Dput his phone in his backpack so he can ignore incoming calls and messages
Aleave his phone at home when he goes out to study because he doesn’t need it
Bsilence or turn off his phone while he's studying
Ctell his friends how irritating it is when they call him while he's studying
Dput his phone in his backpack so he can ignore incoming calls and messages