Which of the following carbohydrates is essential for the structure of all plant cell walls?

Which of the following represents the anomer of the compound shown?

$\alpha - D - (+)$ glucose and $\beta - D - (+)$ glucose are

Sucrose is

$\alpha-D(+)$ glucose and $\beta-D(+)$ glucose are
$(i)$ Diastereomers
$(ii)$ Geometrical isomers
$(iii)$ Epimers
$(iv)$ Anomers
$(v)$ Enantiomers

When glucose reacts with bromine water,the major product obtained is .......