Concept:
Typography involves arranging text to improve:
• Readability
• Visual appearance
• Balance
• Communication effectiveness
Several adjustment techniques are commonly used in typography:
• Tracking
• Spacing
• Leading
These help improve text presentation and visual harmony.
Step 1: Understanding Tracking.
Tracking means:
• Adjusting uniform spacing between characters
• Increasing or decreasing overall letter spacing
Tracking is a valid typographic adjustment.
Therefore:
\[
A \text{ is correct}
\]
Step 2: Understanding Spacing.
Spacing refers to:
• Arrangement of letters and words
• White-space management
• Visual readability
Hence:
\[
B \text{ is correct}
\]
Step 3: Understanding Fielding.
Fielding is not a recognized standard typography adjustment technique.
Thus:
\[
C \text{ is incorrect}
\]
Step 4: Understanding Leading.
Leading refers to:
• Vertical spacing between lines
• Line-height adjustment
It is an essential typography adjustment.
Therefore:
\[
D \text{ is correct}
\]
Step 5: Constructing the final answer.
Correct adjustments are:
\[
A, B, D
\]
Hence:
\[
\boxed{(2)}
\]
Final Conclusion:
Typography adjustments are commonly done through:
\[
\boxed{\text{Tracking, Spacing and Leading}}
\]
Thus the correct option is:
\[
\boxed{(2)\; A, B \text{ and } D \text{ only}}
\]