Final answer:
The file name 'Budget_Proposal_2014' is the only one that complies with Windows operating system naming conventions, as it avoids the use of restricted characters.
Step-by-step explanation:
The question is about which of the following file names would comply with a Windows operating system. The correct answer is 'Budget_Proposal_2014'. Windows operating systems have certain restrictions on file names. For instance, file names cannot contain the following characters: <, >, :, ", /, \, |, ?, and *.
Therefore, '.Budget2014' would not be allowed because file names cannot begin with a dot, 'Budget_Proposal?' contains a question mark, which is not allowed, and 'Budget_Proposal/2014' includes a slash, which is also forbidden. 'Budget_Proposal_2014' complies with all the rules for file naming in Windows.