Finish the following sentence with the best choice: How to know when to buy and sell stocks?

Choices:
- This is the key to successful trading. You would be advised to use a broker/adviser as there is much to know that may not be available in a timely manner, but a stock adviser keeps up to date. So you will know when to buy or do the opposite, for your best financial outcomes.
- This is the key to successful trading. You would be advised to use a broker/adviser as there is much to know that may not be available in a timely manner, but a stock adviser keeps up to date. So you will know when to buy or do the apposite, for your best financial outcomes.

Answer:
This is the key to successful trading. You would be advised to use a broker/adviser as there is much to know that may not be available in a timely manner, but a stock adviser keeps up to date. So you will know when to buy or do the opposite, for your best financial outcomes.