What result is obtained by adding a small amount of blue to yellow?

Correct answer: Yellowish green

The governing concept is subtractive paint mixing and colour proportion. Yellow mixed with blue moves toward green; because only a small amount of blue is added, yellow remains dominant, so the result is yellowish green and option B is correct. Reddish orange requires red with yellow, while bluish violet requires red with blue. Brown would generally require a more complex mixture or stronger neutralising components, not this simple combination.