IFRS 8 requires an undertaking to report information about:

(i) the revenues derived from its products or services (or groups of similar products and services);

(ii) about the countries in which it earns revenues and holds assets;

(iii) about major clients;

(iv) about transactions with governments.

(a)? Gi) and (1).

(b) (i) to (iii).

(c) (i) to (iv).