Select the letter of the type of graph or diagram that would best show

the following information:
the relationship between the captain of the Titanic and the workers
under his command
a. table e. scale
b. pie chart f. timeline
c. line graph
d. tree diagram

d. tree diagram

For showing the relationship between the captain of the Titanic and the workers under his command, the letter of the type of graph or diagram that would best serve this purpose is d. tree diagram. A tree diagram can visually represent hierarchical relationships, making it suitable for illustrating the captain's position and the workers under his command in a structured manner.