BASIC and FORM

[vitesse wei]

I get a quest from MANNING study kit;
Which of the following statements regarding authentication mechanisms are correct?(Select two)
a The HTTP Basic mechanism transmits the username/password �in the open.�
b The HTTP Basic mechanism uses HTML FORMs to collect usernames/passwords.
c The transmission method in the Basic and FORM mechanisms is the same.
d The method of capturing the usernames/passwords in the Basic and FORM mechanisms is the same.
give anwser is a and C,but I think only one answer,it's c,BASIC has a encript method called BASE64,so i think a is not correct.
somebody clear me,please!

[Ulf Dittmer]

BASIC auth does not encrypt the username/password, it merely encodes them using base-64. Since that is easily reversed, it qualifies as transmission "in the open".