A conference consists of 5 sessions: A, B, C, D, and E. Here are the costs of the sessions. Session A: $50
Session B: $50
Session C: $100
Session D: $150
Session E: $200

A participant plans to attend 3 sessions. Here is a list of all possible samples of size 3 sessions from this population of 5 sessions: ABC, ABD, ABE, ACD, ACE, ADE, BCD, BCE, BDE, and CDE. If sessions A, B, and C are selected, what is the sample minimum session cost?

$50
$66.67
$100
$200