A. Estudiemos would be the correct way to say vamos a estudiar
Thomson
In the 19th century, the mass-to-charge ratios of some ions were measured by electrochemical methods. In 1897, the mass-to-charge ratio of the electron was first measured by J. J. Thomson.
Heyy :))
The best answer would be:
Tan
I hope this helps!
Good day :D