Statement : Mining became one of the leading primary activities of early man.
Inference 1 : Early man was in need of better tools other than stone.
Inference 2 : Early man mined precious metals for making ornaments. Now choose the right answer.
a) Only conclusion 1 follows.
b) Only conclusion 2 follows,
c) Neither 1 nor 2 follows.
d) Both 1 and 2 follow.
