Which of the following statements about new knowledge companies with growth ambitions is correct? a) All knowledge companies that succeed well commercially have a unique idea that can be protected with patents or other formal protection mechanisms. b) A knowledge company that is to succeed commercially should, as a general rule, have an investor. c) It is best to be alone as an entrepreneur in the start-up phase, then you have control over everything and can later recruit the people you need. d) A start-up of a knowledge company made by an interdisciplinary team usually succeeds best commercially.