In gymnosperms, the ovules typically are

The correct option is "unitegmic and orthotropous".

To understand why this is correct, let us break down the terms used to describe ovules in gymnosperms:

1. Number of Integuments (Unitegmic vs. Bitegmic):
The integument is the protective outer envelope surrounding the nucellus of an ovule.
In gymnosperms (non-flowering seed plants like pines, cycads, and ginkgos), the ovule is typically protected by only a single integument layer. This condition of having one single integument is referred to as unitegmic.
In contrast, angiosperms (flowering plants) typically have two integuments (bitegmic).

2. Orientation of the Ovule (Orthotropous vs. Anatropous):
The orientation is defined by the relative positions of the micropyle (the opening at the apex), the chalaza (the base of the ovule), and the funicle (the stalk attaching the ovule to the placenta).
In gymnosperms, the ovules are typically straight or erect. In this arrangement, the micropyle, chalaza, and funicle all lie in a single straight vertical line. This straight type of ovule is called orthotropous (or atropous).
In contrast, an anatropous ovule is completely inverted by 180 degrees, bringing the micropyle close to the funicle, which is common in many angiosperms.

Therefore, gymnosperm ovules are characteristically unitegmic (having a single integument) and orthotropous (straight in posture).