Which of the following is the correct completion of the sentence? "The best way to encourage innovative thinking is not to promise financial rewards for ideas, _______".

But to ensure that the person making the suggestion receives recognition for his contribution

But to ensure that the person who makes the suggestion will be receiving recognition for his contribution

But rather by ensuring that the person making the suggestion receives recognition for his contribution

But rather ensure that suggestion-maker receives recognition for his contribution

The correct answer is: But rather by ensuring that the person making the suggestion receives recognition for his contribution.

This completion emphasizes that recognition for one's contribution is a more effective motivator for innovative thinking than financial rewards.

The phrase "but rather" indicates a contrast between financial rewards and recognition, highlighting the preferred approach.