When a customer logs in to the application, he receives the following response:

HTTP$/1\mathrm{.}1302$ Found

Location: $/$home$.$asp

Set$-$Cookie: SessId$=191041-1042$

Set$-$Cookie: UID$=1042$

Set$-$Cookie: DiscountAgreed$=25$

What can you infer from the above response?

a$.$

The response contains three cookies: session token, user identifier and discount rate.

b$.$

The session token may be vulnerable to sequencing or other attacks

c$.$

$"$ Set$-$Cookie: UID$=1042"$ can potentially be leveraged to exploit access control weaknesses

d$.$

Customers can not modify the DiscountAgreed cookie value