The correct option is A protection of mangrove
<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->
Pokkudan was an agricultural labourer who dropped out of school when he was in 2nd standard. He spent his life planting, preserving, and campaigning for the protection of mangroves. He spread environmental awareness and is a role model for people interested in protecting the environment.