Question

Choose the clearest and most grammatically correct statement.

'These buttons can be used by you to direct incoming calls to the correct people.'
'If a call is incoming, these buttons can be used to direct it to the correct people.'
'Directing incoming calls to the correct peoples done with these buttons.'
'These buttons direct incoming calls to the correct people."

Answer 1

The last one “these buttons direct incoming calls to the correct people”

Answer 2

D. 'These buttons direct incoming calls to the correct people."

Step-by-step explanation:

A. 'These buttons can be used by you to direct incoming calls to the correct people.'

B. 'If a call is incoming, these buttons can be used to direct it to the correct people.' (s/b person)

C. 'Directing incoming calls to the correct peoples (s/b people is) done with these buttons.'

D. 'These buttons direct incoming calls to the correct people."

This is the most acceptable and grammatically correct sentence. The first sentence is correct as well, but the second one is more direct and concise.