Fill in the blank (_) in the following sentence from the following choices.
Sentence: While traversing through a pasture of violets, Tanya laid down to look at the sky with Monica who could not see it. _ was sighted.

Choice 1: While traversing through a pasture of violets, Tanya laid down to look at the sky with Monica who could not see it. Tanya was sighted.
Choice 2: While traversing through a pasture of violets, Tanya laid down to look at the sky with Monica who could not see it. Monica was sighted.
Which of the choices is correct? Respond with only "1" or "2" and no additional text.
1
2. Monica was sighted should be "could not be sighted" or "was not seen" to make the sentence grammatically