The matching between the sub-phases of Prophase I and their specific characters can be understood as follows:

List I (Sub Phases of Prophase I):

• Leptotene: This is the first stage where chromosomes start to become visible under the microscope as thin, thread-like structures. Hence, it is characterized by chromosomes looking like thin threads.
• Zygotene: During this stage, synapsis begins, which is the pairing of homologous chromosomes. This corresponds to the formation of the synaptonemal complex.
• Pachytene: At this stage, crossing over occurs where genetic material is exchanged between homologous chromosomes. Appearance of recombination nodules, which are essential for crossing over, characterizes this stage.
• Diakinesis: This is the final stage of prophase I where chiasmata (the site of crossing over) move to the ends of the chromosomes, a process known as terminalization. Hence, this phase is marked by the completion of terminalization of chiasmata.

List II (Specific Characters):

• I. Synaptonemal complex formation - Characteristic of Zygotene.
• II. Completion of terminalisation of chiasmata - Characteristic of Diakinesis.
• III. Chromosomes look like thin threads - Characteristic of Leptotene.
• IV. Appearance of recombination nodules - Characteristic of Pachytene.

Matching the sub-phases to their characters:

• A (Diakinesis) matches with II (Completion of terminalisation of chiasmata).
• B (Pachytene) matches with IV (Appearance of recombination nodules).
• C (Zygotene) matches with I (Synaptonemal complex formation).
• D (Leptotene) matches with III (Chromosomes look like thin threads).

Thus, the correct answer is Option C:

A-II, B-IV, C-I, D-III.