Complete: ella es la persona. (2nd)
a. segundo
b. segunda
c. segundos
d. segundas

B. Segunda 

Because segundo would mean the person is a boy
and Segunda is a girl because Ella is referring to a girl.
Segundos means Second.
Segundas is just Plural. 
Hope this Helps :D

Choose the sentences that are true. the observatory of mount tololo: is in the sahara desert has the largest telescope in the southern hemisphere are allowed student visits every saturday has free tours. i know little spanish so i had to look this up. i know simple spanish. sorry : (

What do you think about music? do you like words? do you like dancing? do you like that kind of music? how long have you listened to this type of music? btw im in the same spanish class ; )