Given a short query with keyphrases about a research idea in 2019 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: The CamLoc system.

Keyphrases: pedestrian location estimation images

Dataset description:
Quoref: Quoref is a QA dataset which tests the coreferential reasoning capability of reading comprehension systems. In this span-selection benchmark containing 24K questions over 4.7K paragraphs from Wikipedia, a system must resolve hard coreferences before selecting the appropriate span(s) in the paragraphs for answering questions.
COCO: The MS COCO (Microsoft Common Objects in Context) dataset is a large-scale object detection, segmentation, key-point detection, and captioning dataset. The dataset consists of 328K images.
SCDB: Includes annotations for 10 distinguishable concepts.
Jester: 6.5 million anonymous ratings of jokes by users of the Jester Joke Recommender System.

Options:- A: Quoref  B: COCO  C: SCDB  D: Jester
COCO