Lisa sends an email to five friends. The next day, each of Lisa's friends forwards the email to five more people. The (mathematical) process continues for a few days. Which function represents the number of people who will receive the email on the nth day?

A) cn = 5n

B) cn = 5n

C) cn = n + 5

D) cn = n5 + 5

In the figure below, segment ac is congruent to segment ab: which statement is used to prove that angle abd is congruent to angle acd? a.)triangle acd is similar to triangle abd. b.)triangle acd is congruent to triangle abd. c.)segment a.d. is congruent to segment ac. d.)segment a.d. is congruent to segment dc.