What prounoun will replace the underlined noun Sheila's picture

To determine which pronoun will replace the noun "Sheila's picture," you need to consider the gender and the number of the noun. Since "Sheila" is typically a female name, we will assume that Sheila is a woman. Additionally, we need to determine if the noun is singular or plural. In this case, "picture" is singular.

The appropriate pronoun to replace Sheila's picture would be "her." "Her" is the possessive pronoun that corresponds to a singular feminine noun. Therefore, the pronoun that will replace "Sheila's picture" is "her."