Cantilever construction is a. a type of construction that features a horizontal beam that extends past its vertical support
b. a type of construction where the main load-bearing elements are hung from suspension cables
that are then suspended from vertical supports anchored into the ground or a riverbed.
C. uses vertical steel support and horizontal slab of reinforced concrete which is connected by
stairways.
d. a skeletal frame constructed in a regular pattern to support the floors, roof, or walls.

A

Explanation:

beam supported at one end and carrying a load at the other end or distributed along the unsupported portion. The upper half of the thickness of such a beam is subjected to tensile stress, tending to elongate the fibres, the lower half to compressive stress, tending to crush them

it would usually depend on the genre that they would provide

including the octave, the answer would 8 notes in a major scale with one note being played twice. ex) c major scale includes: c, d, e, f, g, a, b, c

notice that c is played twice

however, if you were to ask me how many different notes are in a major scale- the answer would be 7.