Brandon (56) and Diane (54) are married and file a joint tax return. Brandon has self-only coverage in a high-deductible health plan (HDHP) through his employer. Diane has family coverage in an HDHP through her employer. Diane's insurance covers the couple's two children. Which 2022 health savings account (HSA) contribution allocation is allowed? 

Brandon contributes $3,600 to his HSA and Diane contributes $4,600 to her HSA. 

Brandon contributes $4,600 to his HSA and Diane contributes $3,600 to her HSA. 

Brandon contributes $4,600 to his HSA and Diane contributes $7,200 to her HSA. 

Brandon contributes $8,200 to his HSA and Diane contributes $7,200 to her HSA