(i) The relationship between the economy and the environment is generally explained in the form of a “Material Balance Model”.
(ii) This model developed by Alenkneese and R.V. Ayres.
(a) Both (i) and (ii) are true
(b) Both (i) and (ii) are false
(c) (i) is true but (ii) is false
(d) (i) is false but (ii) is true