Based on the model for conventional signals below,which signal level should an individual of medium ability adopt? 
Definitions:
Cost Method
An accounting approach used for investments, wherein the investment is recorded at cost and adjusted only for dividends received, impairments, or changes in fair value.
Consolidated Income Statement
A financial statement that presents the combined financial results of a parent company and its subsidiaries as one single entity.
Income Tax Expense
The amount of money a company owes in taxes based on its taxable income for a given fiscal period.
Cost Method
An accounting method used for investments, where the investment is recorded at cost and earnings from the investment are recognized only when dividends are received.
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