Needle–like sporophytes are characteristic of which of the following types of bryophytes

Hornworts are needle-like sporophytes that are a part of the group of bryophytes or non-vascular plants. They have horn-like or needle-like structures that have a flattened green plant body. These hornworts may be found all over the world but can only grow in places that are damp and humid. Some of its other species grow in large numbers as tiny weeds in garden soils and cultivated fields. While others in the tropical and subtropical areas grow on barks of trees.

The correct answer is  b)