Question

read the excerpt from \daughter of invention\.
\ya, ya!\ she waved them out of her room at last.
\there is no use trying to drink spilt milk, thats for
sure.\
what does laura mean to express to her daughters?
○ she wants her daughters to learn from her
mistakes.
○ she does not want to dwell on something that
cannot be changed.
○ she intends to invent many more useful things she
can patent.
○ she wishes that she had been the one to patent the
suitcase with wheels.

Explanation:

The phrase "There is no use trying to drink spilled milk" is a common idiom meaning it's pointless to focus on something that has already happened and can't be changed. Laura uses this idiom to convey to her daughters that she doesn't want to dwell on things that can't be altered. The other options don't align with the meaning of the idiom or the context: learning from mistakes isn't indicated, inventing more things isn't the focus, and patenting the suitcase isn't related to the idiom's message.

Answer:

She does not want to dwell on something that cannot be changed.