What does the duke reveal about himself to the reader as he speaks in “my last duchess” by robert browning?
a) that he is a believer in romantic love
b) that he is a trustworthy husband
c) that he is a sophisticated man worthy of respect
d) that he is a calculating villain

The best option about what the Duke reveals about himself as he speaks in "My last Duchess" is D) that he is a calculating villain.

Is this excerpt he is talking about how his first wife was pleased by anything and how his name was valuable and she did not pay enough tribute to the value of it, to a point where he might have ordered her killing.

"Oh, sir, she smiled, no doubt,

Whene’er I passed her; but who passed without

Much the same smile? This grew; I gave commands;

Then all smiles stopped together."

the answer a: perseverance !

either a donut or a sphere or a pancake or a flat sphere. it depends on where the vertical line is.

if the line goes through the center of the circle and is perpendicular to a diameter containing the center, then you get a flat circle.

if the line and the diameter of a the circle meet in the center of the diameter and at an angle, you get a pancake.

if the line is on the circumference of the circle and is at right angles   to the circle you get a ring.

if the line contains the diameter, you get a sphere.

the the line is parallel to the diameter and touches the circumference, you get a donut.