Please help

Which one of the following is a trick used in spanish to identify the right hand? touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase b is your mano derecha. touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase d is your mano izquierda. touch the tips of your index fingers with the tips of your thumbs. the hand that forms a lowercase d is your mano derecha.

How might someone answer the following question? ¿cuándo vamos a la biblioteca? a)voy el martes. b)vas el martes. c)vamos el martes. d)va el martes.

Answer these simple questions for me. number them also do it will be easy for me. don’t put random words.