The workshop … the end of the month will focus on future trends in biometrics.(A) in(B) at(C) of(D) to

To determine the correct preposition to complete the sentence, we should consider the context and usage of each option:

1. Understanding Sentence Context

   • The phrase "the workshop … the end of the month" suggests we are talking about when the workshop is happening, which typically refers to a specific time frame.

2. Evaluating Options

   • (A) in: This is often used to indicate a within time frame (e.g., "in June").
   • (B) at: This preposition is used for specific times (e.g., "at 5 PM" or "at the end of the day"), but is less commonly used for periods like "the end of the month."
   • (C) of: This preposition is not appropriate here as it does not indicate time.
   • (D) to: This suggests direction or purpose but does not fit the phrase properly in this context.

3. Choosing the Best Option

   • The most contextually appropriate preposition is (A) "in" because it correctly indicates that the workshop will occur within the time frame of the end of the month.

Final Answer

The correct sentence would be: "The workshop in the end of the month will focus on future trends in biometrics."