Wiskunde Multiple Choice Vraag uit Gricha's Wiskundige Vragenbank

Welke gelijkheid is correct ?
A. $\sqrt 1 + \sqrt 1 = \sqrt 1\cdot \sqrt 1$
B. $\sqrt 2 + \sqrt 2 = \sqrt 2\cdot \sqrt 2$
C. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt 3 + \sqrt 3 = \sqrt 1\cdot \sqrt 3$
D. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt 4 + \sqrt 4 = \sqrt 1\cdot \sqrt 4$
E. $https://latex.codecogs.com/png.image?\inline \dpi{120}\sqrt 5 + \sqrt 5 = \sqrt 1\cdot \sqrt 5$

[ 3-3570 - op net sinds 25.9.02-(E)-30.10.2023 ]

Which equality is correct ?
See above

$\\ \sqrt4+\sqrt4=2+2=4\\ \sqrt4.\sqrt4=2.2=4$