Answer:
A: Positive attitude toward Young's passion for learning.
Step-by-step explanation:
Throughout the passage, Giblin speaks of Young's accomplishments with high praise (never in a negative way, like answers C & D suggest). B is also incorrect because Giblin does not only focus on Young's ability to learn new languages, he speaks of other things as well.
Therefore, option A is correct - Giblin shows a positive attitude toward Young's passion for learning.