Given a short query with keyphrases about a research idea in 2010 in the domain of artificial intelligence, recommend the relevant datasets to validate the research idea from options provided. A short description of the datasets is also provided to help you.

Query: A supervised classification model which is robust to affine transformations.

Keyphrases: supervised classification image

Dataset description:
Syn2Real: Syn2Real, a synthetic-to-real visual domain adaptation benchmark meant to encourage further development of robust domain transfer methods. The goal is to train a model on a synthetic "source" domain and then update it so that its performance improves on a real "target" domain, without using any target annotations.
PG-19: A new open-vocabulary language modelling benchmark derived from books.
USPS: USPS is a digit dataset automatically scanned from envelopes by the U.S. Postal Service containing a total of 9,298 16×16 pixel grayscale samples; the images are centered, normalized and show a broad range of font styles.
DCASE 2014: DCASE2014 is an audio classification benchmark.

Options:- A: Syn2Real  B: PG-19  C: USPS  D: DCASE 2014
USPS