Which are the best reasons why a code versioning system (CVS) is an important part of a development infrastructure?

i. It can ensure that code modifications are made according to corporate policies.

ii. It will document who made which changes, to ensure accountability.

iii. It will reduce the cost of the development infrastructure.

iv. It can provide control over unauthorized access to proprietary code.

Group of answer choices

All of the above

iii, iv

iii

i, ii, iv