A). Environmental legislation alone cannot solve the poaching problem.
Explanation:
As per the question, option A i.e. 'Environmental legislation alone cannot solve the poaching problem' exemplify the statement that discloses the central idea of the given passage. <u>The author chiefly aims to highlight the issue of 'increased poaching of animals' after passing the 'environmental legislation of outlawing the sale and trade of ivory' which implies that 'the environmental legislation alone cannot stop this trade' as it has rather increased the demand</u>. This would also would require people's contribution along with strict imposition of these laws or legislation by punishing the offenders and by arranging appropriate biosphere reserves and national parks to conserve the endangered species and their hunting that would restrict these people from getting involved in such trade. Thus, <u>option A</u> is the correct answer.
