Question

Choose the sentence that is written incorrectly.      

A. Los amigos son guapos.
B. La muchacha es alta.
C. El hermana es rico.
D. Las amigas son altas.

Answer 1

 Girl words would be la, ella, las, and amigas. but C. has the wrong word, it used El so the Answer would be C. 

Answer 2

"El hermana es rico" is written incorrectly. Remember that articles have to match the gender of the subject. "El" is masculine whereas "La" is feminine. So it should be "La hermana." Also, "rico" should be written as "rica" to match the subject "hermana."