Given a short query with keyphrases about a research idea in 2015 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: I want to use a RTM to model the structure and content of a network.

Keyphrases: relational topic modeling networks

Dataset description:
Cora: The Cora dataset consists of 2708 scientific publications classified into one of seven classes. The citation network consists of 5429 links.
PhysioNet Challenge 2012: The PhysioNet Challenge 2012 dataset is publicly available and contains the de-identified records of 8000 patients in Intensive Care Units (ICU). Each record consists of roughly 48 hours of multivariate time series data with up to 37 features recorded at various times from the patients during their stay such as respiratory rate, glucose etc.
AIDS: AIDS is a graph dataset. It consists of 2000 graphs representing molecular compounds which are constructed from the AIDS Antiviral Screen Database of Active Compounds.
I-HAZE: The I-Haze dataset contains 25 indoor hazy images (size 2833×4657 pixels) training. It has 5 hazy images for validation along with their corresponding ground truth images.

Options:- A: Cora  B: PhysioNet Challenge 2012  C: AIDS  D: I-HAZE
Cora