(i) An informal organisation exists with every formal organisation
x
(ii) The objectives of the informal organisation are broadly the same as those of the formal organisation
x
(iii) A strong, close-knit informal organisation is desirable within the formal organisation
x
Rationale: Statement (i) is true. Statement (ii) is not, because the informal organisation has its own agenda. Statement (iii) is not, because a strong informal organisation with its own agenda can undermine the formal organisation: create damaging rumours, safety/quality shortcuts, distractions from task goals etc.