What did Bob Lewis mean with his famous phrase: 'Every piece of software is an opinion'?

Question $15$ options:

A$)$

He meant that project managers must ensure that developers have the right opinions

B$)$

He meant that software design depends on choices made by developers

C$)$

He meant that software is like free speech, constitutionally protected in modern democracies

D$)$

He meant that software developers sometimes create software bugs that make the system malfunction