A. However one likes it or not; agriculture will be considered as the primary source of income,
This creates two independent clauses that are supposed to be put in a single sentence to convey the intended meaning. Also, usage of
However is non sensical
B. However, one likes it or not agriculture will be considered as the primary source of income
usage of
However is non sensical
C. Whether one likes it or not, agriculture will be considered as the primary source of income,
CorrectD. Whether one likes it or not agriculture will be considered as the primary source of income,
A comma is required after
it to make the meaning clear
E. Whether one likes it or not! agriculture will be considered as the primary source of income,
This creates two independent clauses that are supposed to be put in a single sentence to convey the intended meaning.