What is the most likely reason for $3$M undertaking unrelated diversification?

Question $5$ options:

$3$M$\text{'}$s management erroneously imagines synergies to be present in unrelated diversification.

$3$M$\text{'}$s management believes that some unrelated initiatives may become future game changers.

$3$M$\text{'}$s entrepreneurial culture can only be replicated to related businesses.

$3$M has run out of ideas for related diversification.