Nhận biết (M1)

Hydrogen has many uses, from the making of steel to heating a home. Producing it is carbon intensive as things stand, but Priya Raghunathan is one of many scholars asking whether hydrogen can be made at scale by electrolysis, which emits no carbon where renewable energy drives it. Obstacles may keep electrolytic hydrogen from taking over energy systems, Raghunathan suggests, yet there is use in what it can do to decarbonise steel and heating, industries where cutting carbon emissions is particularly hard.

Which statement about the use of hydrogen in the steel and heating industries is most strongly supported by the text?

• A.

  Applications for electrolytic hydrogen are less far along in these industries than in most other carbon-intensive ones.

• B.

  That electrolytic hydrogen cannot yet be produced at large scale has damped these industries' interest in hydrogen-based applications.

• C.

  Worries about how carbon intensive its production is have held these industries back from taking up electrolytic hydrogen.

• D.

  Part at least of what electrolytic hydrogen could do for these industries' emissions is still unrealised.