Which of the following statement$($s$)$

about bamboo are true?

It has a lower specific strength than

metal alloys.

It is composed of lignin$-$hemicellulose

fibres imbedded in a cellulose matrix.

It has a higher strength$-$to$-$density

ratio than plywood.

Flexural rigidity is relatively high due

to the radial density gradient of

parallel fibres in a matrix of

honeycomb$-$like cells combined with a

hollow$-$tube cross$-$sectional shape.