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Two sets A and B are as under `A=|(a,b) in RxxR:|a-5| lt 1 and |b-5| lt 1} B=[(a,b) in Rxx R:4(a-6)^2+9(b-5)^2 le 36} Then:` (1) `B sub A` (2) `A sub B` (3) `AnnB =phi ( an empty set) (4) neither `A sub B` nor `B sub A`

A

`A sub B`

B

`A nnB =phi` (an empty set)

C

neither `A sub B ` nor `B sub A`

D

`B sub A`

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The correct Answer is:
A
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