Directions: The last sentence in the following passage has been deleted. Select the sentence, out of the available options, that best suits the end of the passage

The environmentalists who have taken up the cause of protecting the coral reefs from further destruction have as yet not met with much success. They have had to contend with well-entrenched lobbies - especially in the tourism and fishing sectors. By their actions, these lobbies are only unwittingly undermining their own earning potential. However, in an age where short term financial considerations usually outweigh long term social concerns, (.)