For a given base line, which will show a grater parallax - a distant star or a nearby star?

Which star is at a higher temperature, a red star or a blue star ?

The spectral line for a given element in the light received from a distant star is shifted towards longer wavelength side by 0.025% . Calculate the velocity of star in the line of sight.

The spectral line for a given element in the light received from a distant star is shifted towards longer wavelength side by 0.032% . Deduce the velocity of star in the line of sight.

The spectral line for a given element in the light received from a distant star is shifted towards longer wavelength side by 0.025% . Calculate the velocity of star in the line of sight.

The spectral line for a given element in light received from a distant star is shifted towards longer wavelength by 0.024% . Deduce the velocity of star in the line of sight.

The spectral line of a given element in the light received from a distant star is shifted towards the longer wavelength by 0.032% . Duduce the velocity of star in the line of sight.

Star A is father than star B. Which star will have a large parallax angle?