Subtracting a constant from every term of an A.P. leaves it:
AStill an A.P.
BNot an A.P.
CA G.P. instead
DA constant list
Answer & Solution
Correct answer: A. Still an A.P.
1. Every term moves down by the same amount.
2. Differences between neighbours are untouched.
3. So the resulting sequence is also an A.P.
_Source: NCERT Class 11 Mathematics, Chapter 9, Sequences and Series._
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