Distinguish between heterochromatin and euchromatin. Which of the two is transcriptionally active?

(N/A) Euchromatin:
$(i)$ Loosely packed.
$(ii)$ Stains light.
$(iii)$ Transcriptionally active.
Heterochromatin:
$(i)$ Densely packed.
$(ii)$ Stains dark.
$(iii)$ Transcriptionally inactive.
Euchromatin is the transcriptionally active form of chromatin.