With
In
Upon
To
Answer is Right!
Answer is Wrong!
The correct answer is: for.
The word “for” is used to indicate the purpose or intention of something. In this case, the manager is the master of the firm for all intents and purposes, which means that they have complete control over the firm and its operations.
The other options are not as accurate. The word “with” is used to indicate association or connection. The word “in” is used to indicate location or position. The word “upon” is used to indicate time or sequence. The word “to” is used to indicate direction or destination.
In conclusion, the correct answer is “for” because it is the most accurate word to indicate the purpose or intention of the sentence.