Assertion :Coconut tree is distributed in coastal areas of a large part of world Reason: Coconut fruit can float and get dispersed over thousands of kilometres before losing viability
Coconut requires the hot and wet climate and so it can be grown in coastal areas as well as in deltaic regions of tropical and subtropical countries. Coconut fruit shows the hydra chary means the dispersal takes place through a water medium. Being the habitat of the coastal area it is so adapted that it can float and dispersed over thousands of miles before losing viability.
So, both the assertion and reason are true but the reason is not a correct explanation of it.
The correct option is A.