Centralised control in MNC's implies control exercised by

(a) Branches

(b) Subsidies

(c) Headquarters

(d) Parliament

Centralised control in the context of MNCs refers to the control exercised by the corporation’s headquarters. In the case of MNCs, the headquarters exercise (centralised) control over all its branches and subsidiaries across all the countries where the MNC has a presence.

Hence, the correct answer is option (c).