Frequency of Payroll Deductions. A Participant may purchase shares of Stock under the Plan solely by means of payroll deductions; provided, however, that to the extent provided in the terms and conditions of an Offering, a Participant may also make contributions through payment by cash or check prior to one or more Purchase Dates during the Offering. Payroll deductions, subject to the provisions of Subsection (b) below or as otherwise provided under the terms and conditions of an Offering, shall occur on each payday during participation in the Plan.