What happens if a user clicks "I Agree" without reading the click$-$wrap license?

Select one:

a$.$ The user is automatically bound by the terms and conditions of the license

b$.$ The click$-$wrap license becomes unenforceable if the user did not read it

c$.$ The user can be held legally responsible for any violations of the license terms

d$.$ The user can request a refund if they later discover unfavorable terms