Find out the correct statement.
(i) The interior of Africa was unexplored.
(ii) The coastal states of Gold coast became a British colony in 1854.
(iii) Spain in the sixteenth century was the richest and most powerful in the world.
(iv) The British encouraged irrigation in the first half of nineteenth century.
(a) (i) is correct
(b) (i), (ii) and (iii) are correct
(c) (iii) is correct
(d) (iv) is incorrect
