What sector is probably the main source of Haiti’s economic activity?

argiculture

Explanation:

is the largest sector of the Haitian economy, employing roughly two-thirds of the labour force but accounting for only about one-fourth of the gross domestic product (GDP). Haiti's soils and fishing zones are threatened.

a: social security and social programs

by using  production possibilities graph.  opportunity costs are key expenses in financial matters and are utilized as a part of registering money saving advantage investigation of a venture. such expenses, be that as it may, are not recorded in the record books but rather are perceived in basic leadership by processing the money costs and their subsequent benefit or misfortune.