126In particular, as regards the alleged circumstance that the considerations set out at paragraph 57 of Corus UK v Commission, paragraph 8 above, may be transposed to the present case, it must be held that at that point in the judgment the Court of First Instance held not, as the applicant suggests, that the undertakings to which a decision imposing fines was addressed did not have a choice between paying the fine immediately and providing a bank guarantee, but that, first, by paying the fine, the undertaking merely complied with the operative part of a decision which was enforceable notwithstanding the action which it had brought before the Court of First Instance and, second, that the provision of a bank guarantee rather than immediate payment of the fine was a simple option allowed by the Commission to the undertaking concerned.