Q: In this task, you are given a context and four options. Each option is a suggested ending for the context. You should read the context and pick the best ending for the context. Please answer with "A", "B", "C", and "D".
[header] How to use a formula to think like warren buffet [title] Avoid technology companies if you cannot easily understand them. [step] The same is true if they have competitors you cannot easily understand. Any time that you're not able to decipher the purpose, mission or actions of a company (or those of its nearest competition), that should be a warning sign to you as an investor. <sep> (A) [title] Understand that where you are and what company you work for will play a dramatic role. [title] Understand you will rarely be able to fully understand how a new investor runs his business. (B) This doesn't be a consequence that only you can put them down. However, it doesn't make a profit, either. (C) [title] Make sure you were notified of their monitor software protection status, whether it came from a company owned by you or by a competitor. [title] Consider how you can use a task card. (D) Invest in companies with strategies and goals that are transparent to you. [title] Avoid companies in industries with low profit margins.
A:
D