The Latin word 'vector' means what?

(A) Ratio of the relative strength of gravitational to weak force is nearly ${10}^{-3}$
(B) Ratio of the relative strength of gravitational to weak force is less than ${10}^{-3}$
(C) Ratio of the relative strength of strong nuclear to electromagnetic force is nearly ${10}^2$
(D) Ratio of the relative strength of strong nuclear to electromagnetic force is nearly ${10}^{-2}$.

Which of the following is true?

The correct match is

A total solar eclipse is observed from the earth. At the same time an observer on the moon views the earth. She is most likely to see ($E$ denotes the earth)