Final answer:
Option (b), Lincoln is valuing abstinence, which is the practice of refraining from sexual intercourse before marriage.
Step-by-step explanation:
In the given scenario, Lincoln is valuing abstinence. Abstinence refers to the practice of refraining from partaking in certain activities, in this case, sexual intercourse before marriage. It is a conscious choice made often due to personal, religious, cultural, or health reasons. By choosing to wait until marriage to have sex and seeking a partner who shares this commitment, Lincoln is expressing a strong personal value towards abstinence.