Which of the following, helps promote sustainability reporting?

Group of answer choices

a. Through market forces of the demand for and interest in EGSEE performance reporting by investors and financial markets,

b. Through mandatory sustainability reporting by regulators and listing standards of stock exchanges; a successful case is that European Parliament Directives require large public companies in Europe to report on their social, governance, environmental and diversity initiatives,

c. Through a combination of mandatory and voluntary initiatives.

d. All the Above