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: Trojan detection is formalized as a non-convex optimization problem and an objective function is formulated to

Keyphrases: trojan detection images

Dataset description:
ForecastQA: ForecastQA is a question-answering dataset consisting of 10,392 event forecasting questions, which have been collected and verified via crowdsourcing efforts. The forecasting problem for this dataset is formulated as a restricted-domain, multiple-choice, question-answering (QA) task that simulates the forecasting scenario.
DOTmark: DOTmark is a benchmark for discrete optimal transport, which is designed to serve as a neutral collection of problems, where discrete optimal transport methods can be tested, compared to one another, and brought to their limits on large-scale instances. It consists of a variety of grayscale images, in various resolutions and classes, such as several types of randomly generated images, classical test images and real data from microscopy.
ImageNet: The ImageNet dataset contains 14,197,122 annotated images according to the WordNet hierarchy. Since 2010 the dataset is used in the ImageNet Large Scale Visual Recognition Challenge (ILSVRC), a benchmark in image classification and object detection.
MathQA: MathQA significantly enhances the AQuA dataset with fully-specified operational programs.

Options:- A: ForecastQA  B: DOTmark  C: ImageNet  D: MathQA
ImageNet