What kind of musical texture features the components of call-and-response and heterophony?

The correct answer is focused on the characteristics of polyphonic texture, which includes both call-and-response and heterophony.

In a polyphonic texture, multiple independent melodies interact with each other, creating a rich and intricate sound. Call-and-response is a musical form where a 'call' presented by one part is answered by another, which is very common in various cultural music traditions. Heterophony refers to the style of simultaneous variations of a single melody, where different musicians may play the same melodic line but embellish it differently.

Both of these concepts embody the essence of polyphonic music, highlighting the interplay between different melodic lines. Together, they showcase the complexity and interactivity of the music, which aligns perfectly with the definition and characteristics of polyphony.

In contrast, homophonic texture involves a primary melody supported by chordal accompaniment, while monophonic texture features a single melodic line without harmony or accompaniment. Complex is too vague a term when discussing musical textures specifically. Thus, polyphonic texture is the most accurate and appropriate choice when considering the combination of call-and-response and heterophony.