alleryMatch stack flow: 1. Push: p. In scope 2. Pop: q. Exit scope 3. LIFO: r. Stack rule
A1-p, 2-q, 3-r
B1-p, 2-r, 3-q
C1-q, 2-p, 3-r
D1-r, 2-p, 3-q
Answer & Solution
Correct answer: A. 1-p, 2-q, 3-r
Dynamic scope pushes name bindings onto an association stack on declaration entry and pops them upon scope exit in last-in-first-out order.
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