Directions (79-83): Each of the following questions consists of a paragraph, which may contain one or more grammatical errors. Read the given paragraphs carefully, and then decide how many errors each paragraph contains.

Online learning has become increasingly popular in recent years, offering students the flexibility to learn at there own pace and as per their own schedule. With a wide range from courses and programs available, online learning can help individuals gain new skills, advance their careers, and pursue there interests from anywhere in the world. Online learning can also be more cost effective then traditional classroom-based education, as it eliminates the need for commuting and provides access to a wealth of free or low-cost resources.

The correct option is Four errors.

Let's analyze the paragraph step-by-step to identify the four grammatical errors:

1. First Error: In the first sentence, the phrase "...learn at there own pace..." is incorrect. The word "there" refers to a place or position. It should be replaced with the possessive pronoun "their" to indicate possession by the students.
Correction: "...learn at their own pace..."

2. Second Error: In the second sentence, the phrase "...wide range from courses..." is incorrect. The noun "range" requires the preposition "of" to show the composition of the group or selection.
Correction: "...wide range of courses..."

3. Third Error: In the second sentence, the phrase "...pursue there interests..." is incorrect. Just like the first error, the adverb "there" must be replaced with the possessive pronoun "their" to show ownership of the interests by the individuals.
Correction: "...pursue their interests..."

4. Fourth Error: In the third sentence, the phrase "...more cost effective then traditional..." is incorrect. The adverb "then" relates to time or sequence. For comparisons, the conjunction "than" must be used instead.
Correction: "...more cost effective than traditional..."

Thus, the paragraph contains exactly four grammatical errors.