How do engineers solve the problem of using the smallest possible amount of explosives A. Engineers drill a hole into the column to demolish it
B. Engineers test a number of explosives into a column
C. Engineers guess a amount that is exactly what they need
D. Engineers try to keep the cost down for explosives

I think its A see ian no if you goin get it right but try

Explanation:

Engineers test a number of explosives into a column

Explanation:

To figure out how much they need, engineers study the building plans and also do the test by picking up a column that is not holding the building up, they drill a hole and put right amount of explosive they think is right and set it off.

true

explanation:

"why don't you like me the way i am? " i cried. "i'm not a genius! i can't play the piano, and even if i could, i wouldn't go on tv if you paid me a million dollars! "

explanation:

the conflict between jing-mei and her mother is over jing-mei's piano lessons since her mother wants her to become a prodigy but she does not want to play it any more.