progress\nthe measurement of the progress bar may be uneven because questions can be worth more or less…

progress\nthe measurement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer\n1 which of the following sentences with a parenthetical expression is punctuated correctly?\n○ my grandmother, by the way, painted these beautiful watercolors.\n○ my grandmother by the way painted these, beautiful watercolors.\n○ my grandmother, by the way painted these beautiful watercolors.\n○ my grandmother by the way, painted these beautiful watercolors.

progress\nthe measurement of the progress bar may be uneven because questions can be worth more or less (including zero) depending on your answer\n1 which of the following sentences with a parenthetical expression is punctuated correctly?\n○ my grandmother, by the way, painted these beautiful watercolors.\n○ my grandmother by the way painted these, beautiful watercolors.\n○ my grandmother, by the way painted these beautiful watercolors.\n○ my grandmother by the way, painted these beautiful watercolors.

Answer

Brief Explanations:

To determine the correct punctuation for a parenthetical expression ("by the way" here), we need to set off the parenthetical with commas on both sides (or appropriate punctuation) if it's non - essential. In the first option, "by the way" is set off by commas correctly. The second option incorrectly places a comma in "these, beautiful" and doesn't set off the parenthetical. The third option fails to close the comma around the parenthetical. The fourth option doesn't properly set off the parenthetical at the beginning.

Answer:

A. My grandmother, by the way, painted these beautiful watercolors.