If you would like to be a great asset for the company you are working in, you need to (B) be a problem-solver. Companies value employees that can help them create solutions or improvements to existing issues in the corporation.
The other options are unsuitable because looking like you are working hard is not the same as actually working hard, and keeping quiet and keep your eyes open isn’t a right advice to take when working in a company because it might imply passivity and lack of initiative. Being friendly with your boss never hurts, but you cannot expect by being friendly to him or her, you are immediately a great asset for the company.