Protagonist's reaction upon entering the living-room

The correct answer is d) Horrified.

Explanation:
Upon entering the living-room, the protagonist's reaction is described as being horrified. This suggests that something unsettling or shocking awaited her in the room. Let's analyze the possible reasons for her horrified reaction:

Mysterious or eerie atmosphere:
- The living-room might have been dark or poorly lit, creating a sense of foreboding or mystery.
- Unusual sounds or silence could have set the stage for an unsettling atmosphere.
- The room might have been filled with an eerie silence or strange objects, contributing to a feeling of unease.

Unexpected or disturbing sight:
- The protagonist might have discovered something unexpected or disturbing in the living-room, such as a gruesome scene, a terrifying creature, or evidence of a crime.
- The room could have been in a state of disarray or destruction, indicating a violent event.
- The presence of blood, signs of struggle, or a body could have triggered the protagonist's horrified reaction.

Personal connection:
- The living-room might hold personal significance for the protagonist, making the sight or condition of the room particularly distressing.
- If the protagonist had been away for a significant period, returning to find the living-room in a disturbing state could amplify her horror.

Anticipation of danger:
- The protagonist might have had prior knowledge or a premonition that something dangerous or terrifying awaited her in the living-room.
- Her reaction could be a result of fear or anticipation of a threatening presence.

In conclusion, the protagonist's horrified reaction upon entering the living-room suggests that she encountered something unsettling, disturbing, or dangerous. The specific reason for her horror would be revealed through further details in the narrative.