Given a short query with keyphrases about a research idea in 2020 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: We propose a unified DAEL framework to address both unsupervised domain adaptation

Keyphrases: multi-source unsupervised domain adaptation generalization images

Dataset description:
TechQA: TECHQA is a domain-adaptation question answering dataset for the technical support domain. The TECHQA corpus highlights two real-world issues from the automated customer support domain.
EPIC-KITCHENS-100: This paper introduces the pipeline to scale the largest dataset in egocentric vision EPIC-KITCHENS. The effort culminates in EPIC-KITCHENS-100, a collection of 100 hours, 20M frames, 90K actions in 700 variable-length videos, capturing long-term unscripted activities in 45 environments, using head-mounted cameras.
DomainNet: DomainNet is a dataset of common objects in six different domain. All domains include 345 categories (classes) of objects such as Bracelet, plane, bird and cello.
Libri-Adapt: Libri-Adapt aims to support unsupervised domain adaptation research on speech recognition models.

Options:- A: TechQA  B: EPIC-KITCHENS-100  C: DomainNet  D: Libri-Adapt
DomainNet