Correct Answer: effort

Solution : The correct choice is the second option.

Using the term effort suggests a conscious and dedicated endeavour on the part of the companies to establish a presence and communicate within the communities they operate in.

The meanings of the other options are as follows:

• An establishment is a place, organisation, or institution that has been founded and is typically involved in a specific activity, business, or service.

• An excuse is a reason or explanation offered to justify or pardon one's actions.

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• An aisle is a passage between rows of seats in a building such as a theatre, church, or auditorium

Therefore, the complete sentence is: "All the companies make an effort to be seen and heard within communities."