In each of the question given below, a statement has been given with a blank. Some words or phrases have been given in the options following the statement. Choose the most appropriate word or phrase that could fit in the statement to make it contextually meaningful and grammatically correct.

The ______________ of the business deal made the investor suspicious, so he asked for a more specific outline of the plan.

The correct answer is vagueness.

Step-by-step Explanation:

1. Analyze the context of the sentence:
The sentence states: "The ______________ of the business deal made the investor suspicious, so he asked for a more specific outline of the plan."
The key phrase here is "asked for a more specific outline of the plan." This implies that the original plan lacked details, clarity, or precision, which caused suspicion.

2. Evaluate the options:

• plainness: Means simplicity or lack of decoration/complexity. It does not naturally cause suspicion or require a "more specific" outline.
• vagueness: Means the quality of being unclear, imprecise, or lacking detail. If a deal is vague, an investor would naturally be suspicious and demand a more specific outline. This fits the context perfectly.
• obviousness: Means the state of being clear or easily understood. This contradicts the need for a more specific outline.
• clarity: Means the quality of being clear and easy to understand. This is the opposite of what would make an investor suspicious or prompt a request for details.

3. Conclusion:
Therefore, the word vagueness is the most contextually appropriate and grammatically correct word to complete the statement.